31000032234 has 32 divisors (see below), whose sum is σ = 69431408640. Its totient is φ = 10251976896.

The previous prime is 31000032229. The next prime is 31000032251. The reversal of 31000032234 is 43223000013.

31000032234 is a `hidden beast` number, since 310 + 0 + 0 + 0 + 322 + 34 = 666.

It is a super-2 number, since 2×31000032234² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2253279 + ... + 2266994.

It is an arithmetic number, because the mean of its divisors is an integer number (2169731520).

Almost surely, 2^31000032234 is an apocalyptic number.

31000032234 is an abundant number, since it is smaller than the sum of its proper divisors (38431376406).

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

31000032234 is a wasteful number, since it uses less digits than its factorization.

31000032234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520411 (or 4520405 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31000032234 its reverse (43223000013), we get a palindrome (74223032247).

The spelling of 31000032234 in words is "thirty-one billion, thirty-two thousand, two hundred thirty-four".