23423231129 has 4 divisors (see below), whose sum is σ = 23490733584. Its totient is φ = 23355728676.

The previous prime is 23423231107. The next prime is 23423231149. The reversal of 23423231129 is 92113232432.

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-23423231129 is a prime.

It is a super-2 number, since 2×23423231129² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23423231095 and 23423231104.

It is not an unprimeable number, because it can be changed into a prime (23423231149) 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, 33750707 + ... + 33751400.

It is an arithmetic number, because the mean of its divisors is an integer number (5872683396).

Almost surely, 2^23423231129 is an apocalyptic number.

It is an amenable number.

23423231129 is a deficient number, since it is larger than the sum of its proper divisors (67502455).

23423231129 is an equidigital number, since it uses as much as digits as its factorization.

23423231129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67502454.

The product of its digits is 15552, while the sum is 32.

The spelling of 23423231129 in words is "twenty-three billion, four hundred twenty-three million, two hundred thirty-one thousand, one hundred twenty-nine".