31110113212201 has 4 divisors (see below), whose sum is σ = 31110130485504. Its totient is φ = 31110095938900.

The previous prime is 31110113212159. The next prime is 31110113212249. The reversal of 31110113212201 is 10221231101113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31110113212201 - 2¹⁵ = 31110113179433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31110113212261) 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, 5572765 + ... + 9657946.

It is an arithmetic number, because the mean of its divisors is an integer number (7777532621376).

Almost surely, 2^{31110113212201} is an apocalyptic number.

It is an amenable number.

31110113212201 is a deficient number, since it is larger than the sum of its proper divisors (17273303).

31110113212201 is a wasteful number, since it uses less digits than its factorization.

31110113212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17273302.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 31110113212201 its reverse (10221231101113), we get a palindrome (41331344313314).

The spelling of 31110113212201 in words is "thirty-one trillion, one hundred ten billion, one hundred thirteen million, two hundred twelve thousand, two hundred one".