31031018234 has 16 divisors (see below), whose sum is σ = 49022560800. Its totient is φ = 14691038544.

The previous prime is 31031018233. The next prime is 31031018243. The reversal of 31031018234 is 43281013013.

It is not an unprimeable number, because it can be changed into a prime (31031018233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146204 + ... + 288855.

It is an arithmetic number, because the mean of its divisors is an integer number (3063910050).

Almost surely, 2^31031018234 is an apocalyptic number.

31031018234 is a deficient number, since it is larger than the sum of its proper divisors (17991542566).

31031018234 is a wasteful number, since it uses less digits than its factorization.

31031018234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436957.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 31031018234 in words is "thirty-one billion, thirty-one million, eighteen thousand, two hundred thirty-four".