31034634520 has 32 divisors (see below), whose sum is σ = 69870992400. Its totient is φ = 12406197888.

The previous prime is 31034634469. The next prime is 31034634569. The reversal of 31034634520 is 2543643013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173355 + ... + 303514.

Almost surely, 2^31034634520 is an apocalyptic number.

It is an amenable number.

31034634520 is an abundant number, since it is smaller than the sum of its proper divisors (38836357880).

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

31034634520 is a wasteful number, since it uses less digits than its factorization.

31034634520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478507 (or 478503 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 31034634520 in words is "thirty-one billion, thirty-four million, six hundred thirty-four thousand, five hundred twenty".