123911922 has 16 divisors (see below), whose sum is σ = 253868832. Its totient is φ = 40296480.

The previous prime is 123911917. The next prime is 123911999. The reversal of 123911922 is 229119321.

It is a self number, because there is not a number n which added to its sum of digits gives 123911922.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251608 + ... + 252099.

It is an arithmetic number, because the mean of its divisors is an integer number (15866802).

Almost surely, 2^123911922 is an apocalyptic number.

123911922 is an abundant number, since it is smaller than the sum of its proper divisors (129956910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123911922 is a wasteful number, since it uses less digits than its factorization.

123911922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503753.

The product of its digits is 1944, while the sum is 30.

The square root of 123911922 is about 11131.5732041792. The cubic root of 123911922 is about 498.5449993868.

The spelling of 123911922 in words is "one hundred twenty-three million, nine hundred eleven thousand, nine hundred twenty-two".