31032110123111 has 32 divisors (see below), whose sum is σ = 32685874818240. Its totient is φ = 29430810832896.

The previous prime is 31032110123083. The next prime is 31032110123149. The reversal of 31032110123111 is 11132101123013.

It is not a de Polignac number, because 31032110123111 - 2³⁰ = 31031036381287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032110123611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2171133281 + ... + 2171147573.

It is an arithmetic number, because the mean of its divisors is an integer number (1021433588070).

Almost surely, 2^{31032110123111} is an apocalyptic number.

31032110123111 is a deficient number, since it is larger than the sum of its proper divisors (1653764695129).

31032110123111 is a wasteful number, since it uses less digits than its factorization.

31032110123111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23523.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31032110123111 its reverse (11132101123013), we get a palindrome (42164211246124).

The spelling of 31032110123111 in words is "thirty-one trillion, thirty-two billion, one hundred ten million, one hundred twenty-three thousand, one hundred eleven".