31340021044 has 24 divisors (see below), whose sum is σ = 55114419528. Its totient is φ = 15593195520.

The previous prime is 31340021039. The next prime is 31340021059. The reversal of 31340021044 is 44012004313.

It can be written as a sum of positive squares in 4 ways, for example, as 1293265444 + 30046755600 = 35962^2 + 173340^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832452 + ... + 869284.

It is an arithmetic number, because the mean of its divisors is an integer number (2296434147).

Almost surely, 2^31340021044 is an apocalyptic number.

It is an amenable number.

31340021044 is a deficient number, since it is larger than the sum of its proper divisors (23774398484).

31340021044 is a wasteful number, since it uses less digits than its factorization.

31340021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37875 (or 37873 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31340021044 its reverse (44012004313), we get a palindrome (75352025357).

The spelling of 31340021044 in words is "thirty-one billion, three hundred forty million, twenty-one thousand, forty-four".