31110212231013 has 8 divisors (see below), whose sum is σ = 41486828728768. Its totient is φ = 20736868610304.

The previous prime is 31110212231003. The next prime is 31110212231023. The reversal of 31110212231013 is 31013221201113.

It is an interprime number because it is at equal distance from previous prime (31110212231003) and next prime (31110212231023).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31110212231013 - 2⁴ = 31110212230997 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 (31110212231003) 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 7 ways as a sum of consecutive naturals, for example, 818197081 + ... + 818235102.

It is an arithmetic number, because the mean of its divisors is an integer number (5185853591096).

Almost surely, 2^{31110212231013} is an apocalyptic number.

It is an amenable number.

31110212231013 is a deficient number, since it is larger than the sum of its proper divisors (10376616497755).

31110212231013 is a wasteful number, since it uses less digits than its factorization.

31110212231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636438523.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31110212231013 its reverse (31013221201113), we get a palindrome (62123433432126).

The spelling of 31110212231013 in words is "thirty-one trillion, one hundred ten billion, two hundred twelve million, two hundred thirty-one thousand, thirteen".