31023203323112 has 128 divisors (see below), whose sum is σ = 78103721283840. Its totient is φ = 11156717537280.

The previous prime is 31023203323037. The next prime is 31023203323163. The reversal of 31023203323112 is 21132330232013.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224611418 + ... + 224749494.

It is an arithmetic number, because the mean of its divisors is an integer number (610185322530).

Almost surely, 2^{31023203323112} is an apocalyptic number.

It is an amenable number.

31023203323112 is an abundant number, since it is smaller than the sum of its proper divisors (47080517960728).

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

31023203323112 is a wasteful number, since it uses less digits than its factorization.

31023203323112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166171 (or 166167 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31023203323112 its reverse (21132330232013), we get a palindrome (52155533555125).

The spelling of 31023203323112 in words is "thirty-one trillion, twenty-three billion, two hundred three million, three hundred twenty-three thousand, one hundred twelve".