923163131 has 6 divisors (see below), whose sum is σ = 1007196996. Its totient is φ = 839147600.

The previous prime is 923163097. The next prime is 923163179. The reversal of 923163131 is 131361329.

It is not a de Polignac number, because 923163131 - 2⁶ = 923163067 is a prime.

It is a super-2 number, since 2×923163131² = 1704460332875446322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 923163094 and 923163103.

It is not an unprimeable number, because it can be changed into a prime (923163181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96191 + ... + 105351.

It is an arithmetic number, because the mean of its divisors is an integer number (167866166).

Almost surely, 2^923163131 is an apocalyptic number.

923163131 is a deficient number, since it is larger than the sum of its proper divisors (84033865).

923163131 is an frugal number, since it uses more digits than its factorization.

923163131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333 (or 9172 counting only the distinct ones).

The product of its digits is 2916, while the sum is 29.

The square root of 923163131 is about 30383.5997044458. The cubic root of 923163131 is about 973.7021982518.

The spelling of 923163131 in words is "nine hundred twenty-three million, one hundred sixty-three thousand, one hundred thirty-one".