23231479431 has 8 divisors (see below), whose sum is σ = 30981448960. Its totient is φ = 15484581432.

The previous prime is 23231479423. The next prime is 23231479441. The reversal of 23231479431 is 13497413232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23231479431 - 2³ = 23231479423 is a prime.

It is a super-2 number, since 2×23231479431² (a number of 22 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 23231479431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231479441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750175 + ... + 780528.

It is an arithmetic number, because the mean of its divisors is an integer number (3872681120).

Almost surely, 2^23231479431 is an apocalyptic number.

23231479431 is a deficient number, since it is larger than the sum of its proper divisors (7749969529).

23231479431 is a wasteful number, since it uses less digits than its factorization.

23231479431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535765.

The product of its digits is 108864, while the sum is 39.

The spelling of 23231479431 in words is "twenty-three billion, two hundred thirty-one million, four hundred seventy-nine thousand, four hundred thirty-one".