231550355402339 has 2 divisors, whose sum is σ = 231550355402340. Its totient is φ = 231550355402338.

The previous prime is 231550355402299. The next prime is 231550355402347. The reversal of 231550355402339 is 933204553055132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231550355402339 is a prime.

It is not a weakly prime, because it can be changed into another prime (231550355405339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115775177701169 + 115775177701170.

It is an arithmetic number, because the mean of its divisors is an integer number (115775177701170).

Almost surely, 2^{231550355402339} is an apocalyptic number.

231550355402339 is a deficient number, since it is larger than the sum of its proper divisors (1).

231550355402339 is an equidigital number, since it uses as much as digits as its factorization.

231550355402339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290000, while the sum is 50.

The spelling of 231550355402339 in words is "two hundred thirty-one trillion, five hundred fifty billion, three hundred fifty-five million, four hundred two thousand, three hundred thirty-nine".