31204332111 has 64 divisors (see below), whose sum is σ = 45440640000. Its totient is φ = 18982149120.

The previous prime is 31204332091. The next prime is 31204332113. The reversal of 31204332111 is 11123340213.

It is a de Polignac number, because none of the positive numbers 2^k-31204332111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204332113) 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 63 ways as a sum of consecutive naturals, for example, 106499281 + ... + 106499573.

It is an arithmetic number, because the mean of its divisors is an integer number (710010000).

Almost surely, 2^31204332111 is an apocalyptic number.

31204332111 is a deficient number, since it is larger than the sum of its proper divisors (14236307889).

31204332111 is a wasteful number, since it uses less digits than its factorization.

31204332111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31204332111 its reverse (11123340213), we get a palindrome (42327672324).

The spelling of 31204332111 in words is "thirty-one billion, two hundred four million, three hundred thirty-two thousand, one hundred eleven".