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12130001320 = 2359716191931
BaseRepresentation
bin10110100110000000…
…10010000110101000
31011022100201220122011
423103000102012220
5144320240020240
65323352005304
7606410211223
oct132300220650
934270656564
1012130001320
115165084588
122426390834
1311b4080a98
14830dbc5ba
154aed9e6ea
hex2d30121a8

12130001320 has 64 divisors (see below), whose sum is σ = 27605188800. Its totient is φ = 4796528640.

The previous prime is 12130001281. The next prime is 12130001327. The reversal of 12130001320 is 2310003121.

It is a self number, because there is not a number n which added to its sum of digits gives 12130001320.

It is not an unprimeable number, because it can be changed into a prime (12130001327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6280755 + ... + 6282685.

It is an arithmetic number, because the mean of its divisors is an integer number (431331075).

Almost surely, 212130001320 is an apocalyptic number.

12130001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130001320 is an abundant number, since it is smaller than the sum of its proper divisors (15475187480).

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

12130001320 is a wasteful number, since it uses less digits than its factorization.

12130001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658 (or 3654 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12130001320 its reverse (2310003121), we get a palindrome (14440004441).

The spelling of 12130001320 in words is "twelve billion, one hundred thirty million, one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 97 194 388 485 776 970 1619 1931 1940 3238 3862 3880 6476 7724 8095 9655 12952 15448 16190 19310 32380 38620 64760 77240 157043 187307 314086 374614 628172 749228 785215 936535 1256344 1498456 1570430 1873070 3126289 3140860 3746140 6252578 6281720 7492280 12505156 15631445 25010312 31262890 62525780 125051560 303250033 606500066 1213000132 1516250165 2426000264 3032500330 6065000660 12130001320