23369181309 has 12 divisors (see below), whose sum is σ = 35532088800. Its totient is φ = 14759482824.

The previous prime is 23369181301. The next prime is 23369181323. The reversal of 23369181309 is 90318196332.

23369181309 is a `hidden beast` number, since 2 + 336 + 9 + 1 + 8 + 1 + 309 = 666.

It is not a de Polignac number, because 23369181309 - 2³ = 23369181301 is a prime.

It is a super-2 number, since 2×23369181309² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23369181301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68330769 + ... + 68331110.

It is an arithmetic number, because the mean of its divisors is an integer number (2961007400).

Almost surely, 2^23369181309 is an apocalyptic number.

It is an amenable number.

23369181309 is a deficient number, since it is larger than the sum of its proper divisors (12162907491).

23369181309 is a wasteful number, since it uses less digits than its factorization.

23369181309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136661904 (or 136661901 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 23369181309 in words is "twenty-three billion, three hundred sixty-nine million, one hundred eighty-one thousand, three hundred nine".