31312110113101 has 4 divisors (see below), whose sum is σ = 31363190228092. Its totient is φ = 31261029998112.

The previous prime is 31312110113047. The next prime is 31312110113107. The reversal of 31312110113101 is 10131101121313.

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 6839004292201 + 24473105820900 = 2615149^2 + 4947030^2 .

It is a cyclic number.

It is not a de Polignac number, because 31312110113101 - 2⁷ = 31312110112973 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 (31312110113107) 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, 25540056576 + ... + 25540057801.

It is an arithmetic number, because the mean of its divisors is an integer number (7840797557023).

Almost surely, 2^{31312110113101} is an apocalyptic number.

It is an amenable number.

31312110113101 is a deficient number, since it is larger than the sum of its proper divisors (51080114991).

31312110113101 is an equidigital number, since it uses as much as digits as its factorization.

31312110113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51080114990.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 31312110113101 its reverse (10131101121313), we get a palindrome (41443211234414).

The spelling of 31312110113101 in words is "thirty-one trillion, three hundred twelve billion, one hundred ten million, one hundred thirteen thousand, one hundred one".