31230393389099 has 2 divisors, whose sum is σ = 31230393389100. Its totient is φ = 31230393389098.

The previous prime is 31230393389053. The next prime is 31230393389197. The reversal of 31230393389099 is 99098339303213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31230393389099 - 2²⁴ = 31230376611883 is a prime.

It is not a weakly prime, because it can be changed into another prime (31230393389599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15615196694549 + 15615196694550.

It is an arithmetic number, because the mean of its divisors is an integer number (15615196694550).

Almost surely, 2^{31230393389099} is an apocalyptic number.

31230393389099 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230393389099 is an equidigital number, since it uses as much as digits as its factorization.

31230393389099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25509168, while the sum is 62.

The spelling of 31230393389099 in words is "thirty-one trillion, two hundred thirty billion, three hundred ninety-three million, three hundred eighty-nine thousand, ninety-nine".