231265115122 has 4 divisors (see below), whose sum is σ = 346897672686. Its totient is φ = 115632557560.

The previous prime is 231265115119. The next prime is 231265115131. The reversal of 231265115122 is 221511562132.

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., 169677262561 + 61587852561 = 411919^2 + 248169^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57816278779 + ... + 57816278782.

Almost surely, 2^231265115122 is an apocalyptic number.

231265115122 is a deficient number, since it is larger than the sum of its proper divisors (115632557564).

231265115122 is a wasteful number, since it uses less digits than its factorization.

231265115122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115632557563.

The product of its digits is 7200, while the sum is 31.

Adding to 231265115122 its reverse (221511562132), we get a palindrome (452776677254).

The spelling of 231265115122 in words is "two hundred thirty-one billion, two hundred sixty-five million, one hundred fifteen thousand, one hundred twenty-two".