231476013 has 12 divisors (see below), whose sum is σ = 336203868. Its totient is φ = 153463680.

The previous prime is 231475991. The next prime is 231476053. The reversal of 231476013 is 310674132.

231476013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24029604 + 207446409 = 4902^2 + 14403^2 .

It is not a de Polignac number, because 231476013 - 2¹⁰ = 231474989 is a prime.

It is a super-2 number, since 2×231476013² = 107162289188752338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231476053) 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, 69420 + ... + 72677.

It is an arithmetic number, because the mean of its divisors is an integer number (28016989).

Almost surely, 2^231476013 is an apocalyptic number.

It is an amenable number.

231476013 is a deficient number, since it is larger than the sum of its proper divisors (104727855).

231476013 is a wasteful number, since it uses less digits than its factorization.

231476013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142284 (or 142281 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 231476013 is about 15214.3357725535. The cubic root of 231476013 is about 614.0004146814. Note that the first 3 decimals are identical.

The spelling of 231476013 in words is "two hundred thirty-one million, four hundred seventy-six thousand, thirteen".