23132561239 has 4 divisors (see below), whose sum is σ = 23133193056. Its totient is φ = 23131929424.

The previous prime is 23132561233. The next prime is 23132561267. The reversal of 23132561239 is 93216523132.

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 23132561239 - 2²¹ = 23130464087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23132561198 and 23132561207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132561233) 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, 257374 + ... + 335419.

It is an arithmetic number, because the mean of its divisors is an integer number (5783298264).

Almost surely, 2^23132561239 is an apocalyptic number.

23132561239 is a deficient number, since it is larger than the sum of its proper divisors (631817).

23132561239 is an equidigital number, since it uses as much as digits as its factorization.

23132561239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631816.

The product of its digits is 58320, while the sum is 37.

The spelling of 23132561239 in words is "twenty-three billion, one hundred thirty-two million, five hundred sixty-one thousand, two hundred thirty-nine".