231242161922 has 6 divisors (see below), whose sum is σ = 346864262979. Its totient is φ = 115620740930.

The previous prime is 231242161903. The next prime is 231242161939. The reversal of 231242161922 is 229161242132.

It can be written as a sum of positive squares in only one way, i.e., 115621080961 + 115621080961 = 340031^2 + 340031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=340031.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 510047 + ... + 850077.

Almost surely, 2^231242161922 is an apocalyptic number.

231242161922 is a deficient number, since it is larger than the sum of its proper divisors (115622101057).

231242161922 is an frugal number, since it uses more digits than its factorization.

231242161922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680064 (or 340033 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The spelling of 231242161922 in words is "two hundred thirty-one billion, two hundred forty-two million, one hundred sixty-one thousand, nine hundred twenty-two".