23181338000 has 40 divisors (see below), whose sum is σ = 56052480120. Its totient is φ = 9272534400.

The previous prime is 23181337997. The next prime is 23181338021. The reversal of 23181338000 is 83318132.

It can be written as a sum of positive squares in 4 ways, for example, as 12845056 + 23168492944 = 3584^2 + 152212^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 5793335 + ... + 5797334.

It is an arithmetic number, because the mean of its divisors is an integer number (1401312003).

Almost surely, 2^23181338000 is an apocalyptic number.

23181338000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23181338000 is an abundant number, since it is smaller than the sum of its proper divisors (32871142120).

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

23181338000 is a wasteful number, since it uses less digits than its factorization.

23181338000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11590692 (or 11590676 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 23181338000 in words is "twenty-three billion, one hundred eighty-one million, three hundred thirty-eight thousand".