13151131512 has 32 divisors (see below), whose sum is σ = 33043056000. Its totient is φ = 4361680224.

The previous prime is 13151131489. The next prime is 13151131517. The reversal of 13151131512 is 21513115131.

It is a super-2 number, since 2×13151131512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13151131517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372018 + ... + 1381569.

It is an arithmetic number, because the mean of its divisors is an integer number (1032595500).

Almost surely, 2^13151131512 is an apocalyptic number.

13151131512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13151131512 is an abundant number, since it is smaller than the sum of its proper divisors (19891924488).

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

13151131512 is a wasteful number, since it uses less digits than its factorization.

13151131512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753795 (or 2753791 counting only the distinct ones).

The product of its digits is 450, while the sum is 24.

Adding to 13151131512 its reverse (21513115131), we get a palindrome (34664246643).

The spelling of 13151131512 in words is "thirteen billion, one hundred fifty-one million, one hundred thirty-one thousand, five hundred twelve".