232503813 has 12 divisors (see below), whose sum is σ = 346672768. Its totient is φ = 150002280.

The previous prime is 232503809. The next prime is 232503851. The reversal of 232503813 is 318305232.

232503813 is a `hidden beast` number, since 232 + 50 + 381 + 3 = 666.

It is not a de Polignac number, because 232503813 - 2² = 232503809 is a prime.

It is a Duffinian number.

232503813 is a modest number, since divided by 3813 gives 2325 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232503413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416395 + ... + 416952.

Almost surely, 2^232503813 is an apocalyptic number.

It is an amenable number.

232503813 is a deficient number, since it is larger than the sum of its proper divisors (114168955).

232503813 is a wasteful number, since it uses less digits than its factorization.

232503813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833384 (or 833381 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 232503813 is about 15248.0757146599. The cubic root of 232503813 is about 614.9078346915.

The spelling of 232503813 in words is "two hundred thirty-two million, five hundred three thousand, eight hundred thirteen".