231332121322 has 4 divisors (see below), whose sum is σ = 346998181986. Its totient is φ = 115666060660.

The previous prime is 231332121313. The next prime is 231332121323. The reversal of 231332121322 is 223121233132.

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., 121360960161 + 109971161161 = 348369^2 + 331619^2 .

It is not an unprimeable number, because it can be changed into a prime (231332121323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57833030329 + ... + 57833030332.

Almost surely, 2^231332121322 is an apocalyptic number.

231332121322 is a deficient number, since it is larger than the sum of its proper divisors (115666060664).

231332121322 is a wasteful number, since it uses less digits than its factorization.

231332121322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115666060663.

The product of its digits is 2592, while the sum is 25.

Adding to 231332121322 its reverse (223121233132), we get a palindrome (454453354454).

The spelling of 231332121322 in words is "two hundred thirty-one billion, three hundred thirty-two million, one hundred twenty-one thousand, three hundred twenty-two".