131230113012 has 120 divisors (see below), whose sum is σ = 354324303872. Its totient is φ = 42308827200.

The previous prime is 131230112963. The next prime is 131230113023. The reversal of 131230113012 is 210311032131.

131230113012 is a `hidden beast` number, since 131 + 230 + 1 + 1 + 301 + 2 = 666.

It is a super-2 number, since 2×131230113012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 34057278 + ... + 34061130.

Almost surely, 2^131230113012 is an apocalyptic number.

131230113012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131230113012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177162151936).

131230113012 is an abundant number, since it is smaller than the sum of its proper divisors (223094190860).

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

131230113012 is a wasteful number, since it uses less digits than its factorization.

131230113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291 (or 7280 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131230113012 its reverse (210311032131), we get a palindrome (341541145143).

The spelling of 131230113012 in words is "one hundred thirty-one billion, two hundred thirty million, one hundred thirteen thousand, twelve".