31112402034 has 32 divisors (see below), whose sum is σ = 72848555136. Its totient is φ = 8672446080.

The previous prime is 31112402033. The next prime is 31112402051. The reversal of 31112402034 is 43020421113.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 31112402034.

It is not an unprimeable number, because it can be changed into a prime (31112402033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9032077 + ... + 9035520.

It is an arithmetic number, because the mean of its divisors is an integer number (2276517348).

Almost surely, 2^31112402034 is an apocalyptic number.

31112402034 is an abundant number, since it is smaller than the sum of its proper divisors (41736153102).

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

31112402034 is a wasteful number, since it uses less digits than its factorization.

31112402034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18067650.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31112402034 its reverse (43020421113), we get a palindrome (74132823147).

The spelling of 31112402034 in words is "thirty-one billion, one hundred twelve million, four hundred two thousand, thirty-four".