231030122 has 4 divisors (see below), whose sum is σ = 346545186. Its totient is φ = 115515060.

The previous prime is 231030089. The next prime is 231030143. The reversal of 231030122 is 221030132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 224430361 + 6599761 = 14981^2 + 2569^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231030097 and 231030106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57757529 + ... + 57757532.

Almost surely, 2^231030122 is an apocalyptic number.

231030122 is a deficient number, since it is larger than the sum of its proper divisors (115515064).

231030122 is a wasteful number, since it uses less digits than its factorization.

231030122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115515063.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 231030122 is about 15199.6750623163. The cubic root of 231030122 is about 613.6059126974.

Adding to 231030122 its reverse (221030132), we get a palindrome (452060254).

The spelling of 231030122 in words is "two hundred thirty-one million, thirty thousand, one hundred twenty-two".