231302032129 has 4 divisors (see below), whose sum is σ = 264345179584. Its totient is φ = 198258884676.

The previous prime is 231302032103. The next prime is 231302032133. The reversal of 231302032129 is 921230203132.

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 231302032129 - 2⁹ = 231302031617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231302032097 and 231302032106.

It is not an unprimeable number, because it can be changed into a prime (231302032189) 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, 16521573717 + ... + 16521573730.

It is an arithmetic number, because the mean of its divisors is an integer number (66086294896).

Almost surely, 2^231302032129 is an apocalyptic number.

It is an amenable number.

231302032129 is a deficient number, since it is larger than the sum of its proper divisors (33043147455).

231302032129 is an equidigital number, since it uses as much as digits as its factorization.

231302032129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33043147454.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 231302032129 in words is "two hundred thirty-one billion, three hundred two million, thirty-two thousand, one hundred twenty-nine".