231330100139 has 2 divisors, whose sum is σ = 231330100140. Its totient is φ = 231330100138.

The previous prime is 231330100129. The next prime is 231330100217. The reversal of 231330100139 is 931001033132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231330100139 - 2⁸ = 231330099883 is a prime.

It is not a weakly prime, because it can be changed into another prime (231330100109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115665050069 + 115665050070.

It is an arithmetic number, because the mean of its divisors is an integer number (115665050070).

Almost surely, 2^231330100139 is an apocalyptic number.

231330100139 is a deficient number, since it is larger than the sum of its proper divisors (1).

231330100139 is an equidigital number, since it uses as much as digits as its factorization.

231330100139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 231330100139 in words is "two hundred thirty-one billion, three hundred thirty million, one hundred thousand, one hundred thirty-nine".