131123311312 has 40 divisors (see below), whose sum is σ = 294321814976. Its totient is φ = 55425897216.

The previous prime is 131123311283. The next prime is 131123311357. The reversal of 131123311312 is 213113321131.

It is a super-3 number, since 3×131123311312³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8010618 + ... + 8026969.

Almost surely, 2^131123311312 is an apocalyptic number.

It is an amenable number.

131123311312 is an abundant number, since it is smaller than the sum of its proper divisors (163198503664).

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

131123311312 is a wasteful number, since it uses less digits than its factorization.

131123311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16037675 (or 16037669 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

Adding to 131123311312 its reverse (213113321131), we get a palindrome (344236632443).

The spelling of 131123311312 in words is "one hundred thirty-one billion, one hundred twenty-three million, three hundred eleven thousand, three hundred twelve".