31369968792101 has 4 divisors (see below), whose sum is σ = 31370017490604. Its totient is φ = 31369920093600.

The previous prime is 31369968792031. The next prime is 31369968792103. The reversal of 31369968792101 is 10129786996313.

It is a Cunningham number, because it is equal to 5600890²+1.

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 23397246184900 + 7972722607201 = 4837070^2 + 2823601^2 .

It is a cyclic number.

It is not a de Polignac number, because 31369968792101 - 2³⁰ = 31368895050277 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 (31369968792103) 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 3 ways as a sum of consecutive naturals, for example, 23369870 + ... + 24675711.

It is an arithmetic number, because the mean of its divisors is an integer number (7842504372651).

Almost surely, 2^{31369968792101} is an apocalyptic number.

It is an amenable number.

31369968792101 is a deficient number, since it is larger than the sum of its proper divisors (48698503).

31369968792101 is an equidigital number, since it uses as much as digits as its factorization.

31369968792101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48698502.

The product of its (nonzero) digits is 26453952, while the sum is 65.

The spelling of 31369968792101 in words is "thirty-one trillion, three hundred sixty-nine billion, nine hundred sixty-eight million, seven hundred ninety-two thousand, one hundred one".