230356576821 has 108 divisors (see below), whose sum is σ = 383190036768. Its totient is φ = 122716018656.

The previous prime is 230356576819. The next prime is 230356576823. The reversal of 230356576821 is 128675653032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (230356576819) and next prime (230356576823).

It is not a de Polignac number, because 230356576821 - 2¹ = 230356576819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230356576823) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 238217280 + ... + 238218246.

It is an arithmetic number, because the mean of its divisors is an integer number (3548055896).

Almost surely, 2^230356576821 is an apocalyptic number.

230356576821 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

230356576821 is a deficient number, since it is larger than the sum of its proper divisors (152833459947).

230356576821 is an equidigital number, since it uses as much as digits as its factorization.

230356576821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 230356576821 in words is "two hundred thirty billion, three hundred fifty-six million, five hundred seventy-six thousand, eight hundred twenty-one".