231204312020939 has 2 divisors, whose sum is σ = 231204312020940. Its totient is φ = 231204312020938.

The previous prime is 231204312020917. The next prime is 231204312021079. The reversal of 231204312020939 is 939020213402132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231204312020939 - 2²⁴ = 231204295243723 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 231204312020896 and 231204312020905.

It is not a weakly prime, because it can be changed into another prime (231204312022939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115602156010469 + 115602156010470.

It is an arithmetic number, because the mean of its divisors is an integer number (115602156010470).

Almost surely, 2^{231204312020939} is an apocalyptic number.

231204312020939 is a deficient number, since it is larger than the sum of its proper divisors (1).

231204312020939 is an equidigital number, since it uses as much as digits as its factorization.

231204312020939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 231204312020939 in words is "two hundred thirty-one trillion, two hundred four billion, three hundred twelve million, twenty thousand, nine hundred thirty-nine".