15423831231 has 8 divisors (see below), whose sum is σ = 20566554624. Its totient is φ = 10281831000.

The previous prime is 15423831217. The next prime is 15423831239. The reversal of 15423831231 is 13213832451.

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

It is not a de Polignac number, because 15423831231 - 2¹⁵ = 15423798463 is a prime.

It is a super-2 number, since 2×15423831231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15423831192 and 15423831201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15423831239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128895 + ... + 217856.

It is an arithmetic number, because the mean of its divisors is an integer number (2570819328).

Almost surely, 2^15423831231 is an apocalyptic number.

15423831231 is a deficient number, since it is larger than the sum of its proper divisors (5142723393).

15423831231 is a wasteful number, since it uses less digits than its factorization.

15423831231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361581.

The product of its digits is 17280, while the sum is 33.

The spelling of 15423831231 in words is "fifteen billion, four hundred twenty-three million, eight hundred thirty-one thousand, two hundred thirty-one".