230625311721 has 24 divisors (see below), whose sum is σ = 361183878720. Its totient is φ = 128224095552.

The previous prime is 230625311671. The next prime is 230625311737. The reversal of 230625311721 is 127113526032.

It is not a de Polignac number, because 230625311721 - 2¹⁰ = 230625310697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230625361721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3982266 + ... + 4039763.

It is an arithmetic number, because the mean of its divisors is an integer number (15049328280).

Almost surely, 2^230625311721 is an apocalyptic number.

230625311721 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

230625311721 is a deficient number, since it is larger than the sum of its proper divisors (130558566999).

230625311721 is an equidigital number, since it uses as much as digits as its factorization.

230625311721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022113 (or 8022076 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 230625311721 its reverse (127113526032), we get a palindrome (357738837753).

It can be divided in two parts, 230625311 and 721, that added together give a palindrome (230626032).

The spelling of 230625311721 in words is "two hundred thirty billion, six hundred twenty-five million, three hundred eleven thousand, seven hundred twenty-one".