231313103122 has 4 divisors (see below), whose sum is σ = 346969654686. Its totient is φ = 115656551560.

The previous prime is 231313103111. The next prime is 231313103173. The reversal of 231313103122 is 221301313132.

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., 224250549601 + 7062553521 = 473551^2 + 84039^2 .

It is a super-2 number, since 2×231313103122² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231313103093 and 231313103102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57828275779 + ... + 57828275782.

Almost surely, 2^231313103122 is an apocalyptic number.

231313103122 is a deficient number, since it is larger than the sum of its proper divisors (115656551564).

231313103122 is a wasteful number, since it uses less digits than its factorization.

231313103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115656551563.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231313103122 its reverse (221301313132), we get a palindrome (452614416254).

The spelling of 231313103122 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred three thousand, one hundred twenty-two".