31212331313130 has 96 divisors (see below), whose sum is σ = 88533537176448. Its totient is φ = 7566282556800.

The previous prime is 31212331313129. The next prime is 31212331313143. The reversal of 31212331313130 is 3131313321213.

31212331313130 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 2 + 331 + 313 + 13 + 0 = 666.

It is a super-2 number, since 2×31212331313130² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31212331313094 and 31212331313103.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21469195 + ... + 22876865.

It is an arithmetic number, because the mean of its divisors is an integer number (922224345588).

Almost surely, 2^{31212331313130} is an apocalyptic number.

31212331313130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31212331313130 is an abundant number, since it is smaller than the sum of its proper divisors (57321205863318).

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

31212331313130 is a wasteful number, since it uses less digits than its factorization.

31212331313130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430092 (or 1430089 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 31212331313130 its reverse (3131313321213), we get a palindrome (34343644634343).

The spelling of 31212331313130 in words is "thirty-one trillion, two hundred twelve billion, three hundred thirty-one million, three hundred thirteen thousand, one hundred thirty".