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12131213232300 = 22352371092902093
BaseRepresentation
bin1011000010001000010010…
…1001111100100010101100
31120221201210002220221020220
42300202010221330202230
53042224211041413200
641445000305011340
72361310526046201
oct260420451744254
946851702827226
1012131213232300
113957900678358
12143b13a923b50
1369cc78a3c746
142dd22225dca8
151608625354a0
hexb0884a7c8ac

12131213232300 has 72 divisors (see below), whose sum is σ = 36048282668496. Its totient is φ = 3147558024960.

The previous prime is 12131213232241. The next prime is 12131213232319. The reversal of 12131213232300 is 323231213121.

It is a super-2 number, since 2×121312132323002 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 546439947 + ... + 546462146.

It is an arithmetic number, because the mean of its divisors is an integer number (500670592618).

Almost surely, 212131213232300 is an apocalyptic number.

12131213232300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131213232300 is an abundant number, since it is smaller than the sum of its proper divisors (23917069436196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131213232300 is a wasteful number, since it uses less digits than its factorization.

12131213232300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092902147 (or 1092902140 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12131213232300 its reverse (323231213121), we get a palindrome (12454444445421).

The spelling of 12131213232300 in words is "twelve trillion, one hundred thirty-one billion, two hundred thirteen million, two hundred thirty-two thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 37 50 60 74 75 100 111 148 150 185 222 300 370 444 555 740 925 1110 1850 2220 2775 3700 5550 11100 1092902093 2185804186 3278706279 4371608372 5464510465 6557412558 10929020930 13114825116 16393531395 21858041860 27322552325 32787062790 40437377441 54645104650 65574125580 80874754882 81967656975 109290209300 121312132323 161749509764 163935313950 202186887205 242624264646 327870627900 404373774410 485248529292 606560661615 808747548820 1010934436025 1213121323230 2021868872050 2426242646460 3032803308075 4043737744100 6065606616150 12131213232300