231322113202 has 4 divisors (see below), whose sum is σ = 346983169806. Its totient is φ = 115661056600.

The previous prime is 231322113173. The next prime is 231322113203. The reversal of 231322113202 is 202311223132.

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., 198897268441 + 32424844761 = 445979^2 + 180069^2 .

It is not an unprimeable number, because it can be changed into a prime (231322113203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57830528299 + ... + 57830528302.

Almost surely, 2^231322113202 is an apocalyptic number.

231322113202 is a deficient number, since it is larger than the sum of its proper divisors (115661056604).

231322113202 is a wasteful number, since it uses less digits than its factorization.

231322113202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115661056603.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231322113202 its reverse (202311223132), we get a palindrome (433633336334).

The spelling of 231322113202 in words is "two hundred thirty-one billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred two".