231132122 has 16 divisors (see below), whose sum is σ = 378628992. Its totient is φ = 105173040.

The previous prime is 231132101. The next prime is 231132127. The reversal of 231132122 is 221231132.

It is a self number, because there is not a number n which added to its sum of digits gives 231132122.

It is not an unprimeable number, because it can be changed into a prime (231132127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60758 + ... + 64449.

It is an arithmetic number, because the mean of its divisors is an integer number (23664312).

Almost surely, 2^231132122 is an apocalyptic number.

231132122 is a deficient number, since it is larger than the sum of its proper divisors (147496870).

231132122 is a wasteful number, since it uses less digits than its factorization.

231132122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125293.

The product of its digits is 144, while the sum is 17.

The square root of 231132122 is about 15203.0300269387. The cubic root of 231132122 is about 613.6962019260.

Adding to 231132122 its reverse (221231132), we get a palindrome (452363254).

The spelling of 231132122 in words is "two hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty-two".