231043122 has 12 divisors (see below), whose sum is σ = 500593470. Its totient is φ = 77014368.

The previous prime is 231043121. The next prime is 231043123. The reversal of 231043122 is 221340132.

231043122 is a `hidden beast` number, since 231 + 0 + 431 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (231043121) and next prime (231043123).

It can be written as a sum of positive squares in only one way, i.e., 174477681 + 56565441 = 13209^2 + 7521^2 .

It is a super-3 number, since 3×231043122³ (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), and also a Moran number because the ratio is a prime number: 12835729 = 231043122 / (2 + 3 + 1 + 0 + 4 + 3 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 231043095 and 231043104.

It is not an unprimeable number, because it can be changed into a prime (231043121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6417847 + ... + 6417882.

Almost surely, 2^231043122 is an apocalyptic number.

231043122 is an abundant number, since it is smaller than the sum of its proper divisors (269550348).

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

231043122 is a wasteful number, since it uses less digits than its factorization.

231043122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12835737 (or 12835734 counting only the distinct ones).

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

The square root of 231043122 is about 15200.1026970215. The cubic root of 231043122 is about 613.6174216255.

Adding to 231043122 its reverse (221340132), we get a palindrome (452383254).

The spelling of 231043122 in words is "two hundred thirty-one million, forty-three thousand, one hundred twenty-two".