31102231102001 has 4 divisors (see below), whose sum is σ = 31451694372900. Its totient is φ = 30752767831104.

The previous prime is 31102231101959. The next prime is 31102231102003. The reversal of 31102231102001 is 10020113220113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4711417536400 + 26390813565601 = 2170580^2 + 5137199^2 .

It is a cyclic number.

It is not a de Polignac number, because 31102231102001 - 2²⁶ = 31102163993137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31102231102003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174731635316 + ... + 174731635493.

It is an arithmetic number, because the mean of its divisors is an integer number (7862923593225).

Almost surely, 2^{31102231102001} is an apocalyptic number.

It is an amenable number.

31102231102001 is a deficient number, since it is larger than the sum of its proper divisors (349463270899).

31102231102001 is an equidigital number, since it uses as much as digits as its factorization.

31102231102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349463270898.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31102231102001 its reverse (10020113220113), we get a palindrome (41122344322114).

The spelling of 31102231102001 in words is "thirty-one trillion, one hundred two billion, two hundred thirty-one million, one hundred two thousand, one".