23209601543 has 16 divisors (see below), whose sum is σ = 25003365120. Its totient is φ = 21463804800.

The previous prime is 23209601533. The next prime is 23209601551. The reversal of 23209601543 is 34510690232.

It is a cyclic number.

It is not a de Polignac number, because 23209601543 - 2⁶ = 23209601479 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 (23209601533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2795228 + ... + 2803518.

It is an arithmetic number, because the mean of its divisors is an integer number (1562710320).

Almost surely, 2^23209601543 is an apocalyptic number.

23209601543 is a deficient number, since it is larger than the sum of its proper divisors (1793763577).

23209601543 is a wasteful number, since it uses less digits than its factorization.

23209601543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11158.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 23209601543 in words is "twenty-three billion, two hundred nine million, six hundred one thousand, five hundred forty-three".