9931423122 has 48 divisors (see below), whose sum is σ = 22536101952. Its totient is φ = 3277681200.

The previous prime is 9931423109. The next prime is 9931423123. The reversal of 9931423122 is 2213241399.

9931423122 is a `hidden beast` number, since 99 + 314 + 231 + 22 = 666.

It is not an unprimeable number, because it can be changed into a prime (9931423123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52078 + ... + 150249.

It is an arithmetic number, because the mean of its divisors is an integer number (469502124).

Almost surely, 2^9931423122 is an apocalyptic number.

9931423122 is an abundant number, since it is smaller than the sum of its proper divisors (12604678830).

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

9931423122 is a wasteful number, since it uses less digits than its factorization.

9931423122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202445 (or 202433 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 9931423122 is about 99656.5257371538. The cubic root of 9931423122 is about 2149.4985758375.

The spelling of 9931423122 in words is "nine billion, nine hundred thirty-one million, four hundred twenty-three thousand, one hundred twenty-two".