232315131 has 8 divisors (see below), whose sum is σ = 312193024. Its totient is φ = 153657000.

The previous prime is 232315123. The next prime is 232315133. The reversal of 232315131 is 131513232.

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

It is not a de Polignac number, because 232315131 - 2³ = 232315123 is a prime.

It is a super-2 number, since 2×232315131² = 107940640183094322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232315098 and 232315107.

It is not an unprimeable number, because it can be changed into a prime (232315133) 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, 304495 + ... + 305256.

It is an arithmetic number, because the mean of its divisors is an integer number (39024128).

Almost surely, 2^232315131 is an apocalyptic number.

232315131 is a deficient number, since it is larger than the sum of its proper divisors (79877893).

232315131 is a wasteful number, since it uses less digits than its factorization.

232315131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609881.

The product of its digits is 540, while the sum is 21.

The square root of 232315131 is about 15241.8873831294. The cubic root of 232315131 is about 614.7414525613.

Adding to 232315131 its reverse (131513232), we get a palindrome (363828363).

The spelling of 232315131 in words is "two hundred thirty-two million, three hundred fifteen thousand, one hundred thirty-one".