31423310112 has 24 divisors (see below), whose sum is σ = 82486189296. Its totient is φ = 10474436672.

The previous prime is 31423310057. The next prime is 31423310123. The reversal of 31423310112 is 21101332413.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163662978 + ... + 163663169.

It is an arithmetic number, because the mean of its divisors is an integer number (3436924554).

Almost surely, 2^31423310112 is an apocalyptic number.

31423310112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31423310112 is an abundant number, since it is smaller than the sum of its proper divisors (51062879184).

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

31423310112 is a wasteful number, since it uses less digits than its factorization.

31423310112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327326160 (or 327326152 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31423310112 its reverse (21101332413), we get a palindrome (52524642525).

The spelling of 31423310112 in words is "thirty-one billion, four hundred twenty-three million, three hundred ten thousand, one hundred twelve".