31113203344 has 20 divisors (see below), whose sum is σ = 63827822124. Its totient is φ = 14641507328.

The previous prime is 31113203269. The next prime is 31113203371. The reversal of 31113203344 is 44330231113.

It can be written as a sum of positive squares in 2 ways, for example, as 11733222400 + 19379980944 = 108320^2 + 139212^2 .

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, 57193117 + ... + 57193660.

Almost surely, 2^31113203344 is an apocalyptic number.

31113203344 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31113203344 is an abundant number, since it is smaller than the sum of its proper divisors (32714618780).

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

31113203344 is a wasteful number, since it uses less digits than its factorization.

31113203344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114386802 (or 114386796 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31113203344 its reverse (44330231113), we get a palindrome (75443434457).

The spelling of 31113203344 in words is "thirty-one billion, one hundred thirteen million, two hundred three thousand, three hundred forty-four".