231730053 has 16 divisors (see below), whose sum is σ = 326363136. Its totient is φ = 146023920.

The previous prime is 231730021. The next prime is 231730063. The reversal of 231730053 is 350037132.

It is not a de Polignac number, because 231730053 - 2⁵ = 231730021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231730003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24975 + ... + 32972.

It is an arithmetic number, because the mean of its divisors is an integer number (20397696).

Almost surely, 2^231730053 is an apocalyptic number.

It is an amenable number.

231730053 is a deficient number, since it is larger than the sum of its proper divisors (94633083).

231730053 is a wasteful number, since it uses less digits than its factorization.

231730053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58024.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 231730053 is about 15222.6821881034. The cubic root of 231730053 is about 614.2249500249.

Adding to 231730053 its reverse (350037132), we get a palindrome (581767185).

The spelling of 231730053 in words is "two hundred thirty-one million, seven hundred thirty thousand, fifty-three".