231322010129 has 4 divisors (see below), whose sum is σ = 264368011584. Its totient is φ = 198276008676.

The previous prime is 231322010111. The next prime is 231322010149. The reversal of 231322010129 is 921010223132.

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 a de Polignac number, because none of the positive numbers 2^k-231322010129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231322010098 and 231322010107.

It is not an unprimeable number, because it can be changed into a prime (231322010149) 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, 16523000717 + ... + 16523000730.

It is an arithmetic number, because the mean of its divisors is an integer number (66092002896).

Almost surely, 2^231322010129 is an apocalyptic number.

It is an amenable number.

231322010129 is a deficient number, since it is larger than the sum of its proper divisors (33046001455).

231322010129 is an equidigital number, since it uses as much as digits as its factorization.

231322010129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33046001454.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 231322010129 in words is "two hundred thirty-one billion, three hundred twenty-two million, ten thousand, one hundred twenty-nine".