31343853876623 has 2 divisors, whose sum is σ = 31343853876624. Its totient is φ = 31343853876622.

The previous prime is 31343853876581. The next prime is 31343853876631. The reversal of 31343853876623 is 32667835834313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31343853876623 - 2²⁰ = 31343852828047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31343853873623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15671926938311 + 15671926938312.

It is an arithmetic number, because the mean of its divisors is an integer number (15671926938312).

Almost surely, 2^{31343853876623} is an apocalyptic number.

31343853876623 is a deficient number, since it is larger than the sum of its proper divisors (1).

31343853876623 is an equidigital number, since it uses as much as digits as its factorization.

31343853876623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 62.

The spelling of 31343853876623 in words is "thirty-one trillion, three hundred forty-three billion, eight hundred fifty-three million, eight hundred seventy-six thousand, six hundred twenty-three".