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12121032131310 = 235439396148939
BaseRepresentation
bin1011000001100010010111…
…0100001000001011101110
31120220202111120101102021110
42300120211310020023232
53042042333211200220
641440154132412450
72360500322112054
oct260304564101356
946822446342243
1012121032131310
113953556709503
121439179177126
1369c01568422b
142dc9380381d4
15160468802be0
hexb0625d082ee

12121032131310 has 32 divisors (see below), whose sum is σ = 29766999841920. Its totient is φ = 3157106043168.

The previous prime is 12121032131297. The next prime is 12121032131359. The reversal of 12121032131310 is 1313123012121.

It is a super-2 number, since 2×121210321313102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4698073180 + ... + 4698075759.

It is an arithmetic number, because the mean of its divisors is an integer number (930218745060).

Almost surely, 212121032131310 is an apocalyptic number.

12121032131310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121032131310 is an abundant number, since it is smaller than the sum of its proper divisors (17645967710610).

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

12121032131310 is a wasteful number, since it uses less digits than its factorization.

12121032131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396148992.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12121032131310 its reverse (1313123012121), we get a palindrome (13434155143431).

The spelling of 12121032131310 in words is "twelve trillion, one hundred twenty-one billion, thirty-two million, one hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 9396148939 18792297878 28188446817 46980744695 56376893634 93961489390 140942234085 281884468170 404034404377 808068808754 1212103213131 2020172021885 2424206426262 4040344043770 6060516065655 12121032131310