230331131121 has 48 divisors (see below), whose sum is σ = 385587216000. Its totient is φ = 121222305792.

The previous prime is 230331131081. The next prime is 230331131137. The reversal of 230331131121 is 121131133032.

It is a happy number.

It is not a de Polignac number, because 230331131121 - 2¹¹ = 230331129073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (230331131141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 723820 + ... + 992258.

It is an arithmetic number, because the mean of its divisors is an integer number (8033067000).

Almost surely, 2^230331131121 is an apocalyptic number.

230331131121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

230331131121 is a deficient number, since it is larger than the sum of its proper divisors (155256084879).

230331131121 is a wasteful number, since it uses less digits than its factorization.

230331131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268918 (or 268911 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 230331131121 its reverse (121131133032), we get a palindrome (351462264153).

The spelling of 230331131121 in words is "two hundred thirty billion, three hundred thirty-one million, one hundred thirty-one thousand, one hundred twenty-one".