31224310112 has 24 divisors (see below), whose sum is σ = 61477859016. Its totient is φ = 15610885632.

The previous prime is 31224310109. The next prime is 31224310171. The reversal of 31224310112 is 21101342213.

It is a congruent number.

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, 454883 + ... + 519005.

It is an arithmetic number, because the mean of its divisors is an integer number (2561577459).

Almost surely, 2^31224310112 is an apocalyptic number.

31224310112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31224310112 is a deficient number, since it is larger than the sum of its proper divisors (30253548904).

31224310112 is a wasteful number, since it uses less digits than its factorization.

31224310112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79350 (or 79342 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31224310112 its reverse (21101342213), we get a palindrome (52325652325).

The spelling of 31224310112 in words is "thirty-one billion, two hundred twenty-four million, three hundred ten thousand, one hundred twelve".