231304122 has 48 divisors (see below), whose sum is σ = 574659072. Its totient is φ = 65867040.

The previous prime is 231304111. The next prime is 231304189. The reversal of 231304122 is 221403132.

It is a super-3 number, since 3×231304122³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231304095 and 231304104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37047 + ... + 42837.

It is an arithmetic number, because the mean of its divisors is an integer number (11972064).

Almost surely, 2^231304122 is an apocalyptic number.

231304122 is an abundant number, since it is smaller than the sum of its proper divisors (343354950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231304122 is a wasteful number, since it uses less digits than its factorization.

231304122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123 (or 6120 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231304122 is about 15208.6857420357. The cubic root of 231304122 is about 613.8483942061.

Adding to 231304122 its reverse (221403132), we get a palindrome (452707254).

The spelling of 231304122 in words is "two hundred thirty-one million, three hundred four thousand, one hundred twenty-two".