231242403339929 has 2 divisors, whose sum is σ = 231242403339930. Its totient is φ = 231242403339928.

The previous prime is 231242403339889. The next prime is 231242403340021. The reversal of 231242403339929 is 929933304242132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207278216065600 + 23964187274329 = 14397160^2 + 4895323^2 .

It is a cyclic number.

It is not a de Polignac number, because 231242403339929 - 2²⁰ = 231242402291353 is a prime.

It is not a weakly prime, because it can be changed into another prime (231242403338929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115621201669964 + 115621201669965.

It is an arithmetic number, because the mean of its divisors is an integer number (115621201669965).

Almost surely, 2^{231242403339929} is an apocalyptic number.

It is an amenable number.

231242403339929 is a deficient number, since it is larger than the sum of its proper divisors (1).

231242403339929 is an equidigital number, since it uses as much as digits as its factorization.

231242403339929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15116544, while the sum is 56.

The spelling of 231242403339929 in words is "two hundred thirty-one trillion, two hundred forty-two billion, four hundred three million, three hundred thirty-nine thousand, nine hundred twenty-nine".