23111879959 has 8 divisors (see below), whose sum is σ = 26423539488. Its totient is φ = 19802711040.

The previous prime is 23111879957. The next prime is 23111879977. The reversal of 23111879959 is 95997811132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23111879959 - 2¹ = 23111879957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111879957) by changing a digit.

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, 602722 + ... + 639919.

It is an arithmetic number, because the mean of its divisors is an integer number (3302942436).

Almost surely, 2^23111879959 is an apocalyptic number.

23111879959 is a deficient number, since it is larger than the sum of its proper divisors (3311659529).

23111879959 is a wasteful number, since it uses less digits than its factorization.

23111879959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245305.

The product of its digits is 1224720, while the sum is 55.

The spelling of 23111879959 in words is "twenty-three billion, one hundred eleven million, eight hundred seventy-nine thousand, nine hundred fifty-nine".