231204566032131 has 4 divisors (see below), whose sum is σ = 308272754709512. Its totient is φ = 154136377354752.

The previous prime is 231204566032067. The next prime is 231204566032133. The reversal of 231204566032131 is 131230665402132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231204566032131 - 2⁶ = 231204566032067 is a prime.

It is a super-2 number, since 2×231204566032131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231204566032131.

It is not an unprimeable number, because it can be changed into a prime (231204566032133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38534094338686 + ... + 38534094338691.

It is an arithmetic number, because the mean of its divisors is an integer number (77068188677378).

Almost surely, 2^{231204566032131} is an apocalyptic number.

231204566032131 is a deficient number, since it is larger than the sum of its proper divisors (77068188677381).

231204566032131 is an equidigital number, since it uses as much as digits as its factorization.

231204566032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77068188677380.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 231204566032131 in words is "two hundred thirty-one trillion, two hundred four billion, five hundred sixty-six million, thirty-two thousand, one hundred thirty-one".