31013132223012 has 24 divisors (see below), whose sum is σ = 72384422863200. Its totient is φ = 10334789644416.

The previous prime is 31013132223011. The next prime is 31013132223043. The reversal of 31013132223012 is 21032223131013.

It is not an unprimeable number, because it can be changed into a prime (31013132223011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365092837 + ... + 365177772.

It is an arithmetic number, because the mean of its divisors is an integer number (3016017619300).

Almost surely, 2^{31013132223012} is an apocalyptic number.

It is an amenable number.

31013132223012 is an abundant number, since it is smaller than the sum of its proper divisors (41371290640188).

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

31013132223012 is a wasteful number, since it uses less digits than its factorization.

31013132223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730274155 (or 730274153 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31013132223012 its reverse (21032223131013), we get a palindrome (52045355354025).

The spelling of 31013132223012 in words is "thirty-one trillion, thirteen billion, one hundred thirty-two million, two hundred twenty-three thousand, twelve".