3131230312116 has 72 divisors (see below), whose sum is σ = 7937148229920. Its totient is φ = 1040830814016.

The previous prime is 3131230312081. The next prime is 3131230312117. The reversal of 3131230312116 is 6112130321313.

3131230312116 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 230 + 312 + 116 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 3131230312116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131230312117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119330950 + ... + 119357186.

It is an arithmetic number, because the mean of its divisors is an integer number (110238169860).

Almost surely, 2^{3131230312116} is an apocalyptic number.

3131230312116 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3131230312116 is an abundant number, since it is smaller than the sum of its proper divisors (4805917917804).

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

3131230312116 is a wasteful number, since it uses less digits than its factorization.

3131230312116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35373 (or 35368 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 3131230312116 its reverse (6112130321313), we get a palindrome (9243360633429).

The spelling of 3131230312116 in words is "three trillion, one hundred thirty-one billion, two hundred thirty million, three hundred twelve thousand, one hundred sixteen".