31275474630823 has 2 divisors, whose sum is σ = 31275474630824. Its totient is φ = 31275474630822.

The previous prime is 31275474630811. The next prime is 31275474630839. The reversal of 31275474630823 is 32803647457213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31275474630823 - 2²⁹ = 31274937759911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31275474630853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15637737315411 + 15637737315412.

It is an arithmetic number, because the mean of its divisors is an integer number (15637737315412).

Almost surely, 2^{31275474630823} is an apocalyptic number.

31275474630823 is a deficient number, since it is larger than the sum of its proper divisors (1).

31275474630823 is an equidigital number, since it uses as much as digits as its factorization.

31275474630823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 55.

The spelling of 31275474630823 in words is "thirty-one trillion, two hundred seventy-five billion, four hundred seventy-four million, six hundred thirty thousand, eight hundred twenty-three".