31234040056 has 32 divisors (see below), whose sum is σ = 60610032000. Its totient is φ = 15071840896.

The previous prime is 31234040009. The next prime is 31234040087. The reversal of 31234040056 is 65004043213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518265 + ... + 575383.

It is an arithmetic number, because the mean of its divisors is an integer number (1894063500).

Almost surely, 2^31234040056 is an apocalyptic number.

It is an amenable number.

31234040056 is a deficient number, since it is larger than the sum of its proper divisors (29375991944).

31234040056 is a wasteful number, since it uses less digits than its factorization.

31234040056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59511 (or 59507 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 31234040056 its reverse (65004043213), we get a palindrome (96238083269).

The spelling of 31234040056 in words is "thirty-one billion, two hundred thirty-four million, forty thousand, fifty-six".