23243550511 has 4 divisors (see below), whose sum is σ = 23245041024. Its totient is φ = 23242060000.

The previous prime is 23243550503. The next prime is 23243550523. The reversal of 23243550511 is 11505534232.

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 23243550511 - 2³ = 23243550503 is a prime.

It is a super-2 number, since 2×23243550511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23243550581) 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, 721615 + ... + 753136.

It is an arithmetic number, because the mean of its divisors is an integer number (5811260256).

Almost surely, 2^23243550511 is an apocalyptic number.

23243550511 is a deficient number, since it is larger than the sum of its proper divisors (1490513).

23243550511 is a wasteful number, since it uses less digits than its factorization.

23243550511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490512.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 23243550511 in words is "twenty-three billion, two hundred forty-three million, five hundred fifty thousand, five hundred eleven".