231941563089 has 4 divisors (see below), whose sum is σ = 309255417456. Its totient is φ = 154627708724.

The previous prime is 231941563081. The next prime is 231941563099. The reversal of 231941563089 is 980365149132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231941563089 - 2³ = 231941563081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231941563081) 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, 38656927179 + ... + 38656927184.

It is an arithmetic number, because the mean of its divisors is an integer number (77313854364).

Almost surely, 2^231941563089 is an apocalyptic number.

It is an amenable number.

231941563089 is a deficient number, since it is larger than the sum of its proper divisors (77313854367).

231941563089 is an equidigital number, since it uses as much as digits as its factorization.

231941563089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77313854366.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 231941563089 in words is "two hundred thirty-one billion, nine hundred forty-one million, five hundred sixty-three thousand, eighty-nine".