23101999999 has 4 divisors (see below), whose sum is σ = 24879076936. Its totient is φ = 21324923064.

The previous prime is 23101999993. The next prime is 23102000027. The reversal of 23101999999 is 99999910132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23101999999 - 2¹⁷ = 23101868927 is a prime.

It is a Duffinian number.

23101999999 is a modest number, since divided by 999999 gives 23101 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23101999993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888538449 + ... + 888538474.

It is an arithmetic number, because the mean of its divisors is an integer number (6219769234).

Almost surely, 2^23101999999 is an apocalyptic number.

23101999999 is a deficient number, since it is larger than the sum of its proper divisors (1777076937).

23101999999 is a wasteful number, since it uses less digits than its factorization.

23101999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777076936.

The product of its (nonzero) digits is 3188646, while the sum is 61.

The spelling of 23101999999 in words is "twenty-three billion, one hundred one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".