31311114440 has 16 divisors (see below), whose sum is σ = 70450007580. Its totient is φ = 12524445760.

The previous prime is 31311114427. The next prime is 31311114463. The reversal of 31311114440 is 4441111313.

It can be written as a sum of positive squares in 2 ways, for example, as 28778408164 + 2532706276 = 169642^2 + 50326^2 .

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, 391388891 + ... + 391388970.

Almost surely, 2^31311114440 is an apocalyptic number.

It is an amenable number.

31311114440 is an abundant number, since it is smaller than the sum of its proper divisors (39138893140).

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

31311114440 is a wasteful number, since it uses less digits than its factorization.

31311114440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782777872 (or 782777868 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31311114440 its reverse (4441111313), we get a palindrome (35752225753).

The spelling of 31311114440 in words is "thirty-one billion, three hundred eleven million, one hundred fourteen thousand, four hundred forty".