131022013153512 has 128 divisors (see below), whose sum is σ = 368094509395200. Its totient is φ = 38561043535872.

The previous prime is 131022013153481. The next prime is 131022013153547. The reversal of 131022013153512 is 215351310220131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131022013153512.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643965814 + ... + 644169242.

It is an arithmetic number, because the mean of its divisors is an integer number (2875738354650).

Almost surely, 2^{131022013153512} is an apocalyptic number.

131022013153512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131022013153512 is an abundant number, since it is smaller than the sum of its proper divisors (237072496241688).

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

131022013153512 is a wasteful number, since it uses less digits than its factorization.

131022013153512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293227 (or 293223 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 131022013153512 its reverse (215351310220131), we get a palindrome (346373323373643).

The spelling of 131022013153512 in words is "one hundred thirty-one trillion, twenty-two billion, thirteen million, one hundred fifty-three thousand, five hundred twelve".