23321232439 has 4 divisors (see below), whose sum is σ = 23328707920. Its totient is φ = 23313756960.

The previous prime is 23321232437. The next prime is 23321232461. The reversal of 23321232439 is 93423212332.

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 23321232439 - 2¹ = 23321232437 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 (23321232437) 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, 3733059 + ... + 3739300.

It is an arithmetic number, because the mean of its divisors is an integer number (5832176980).

Almost surely, 2^23321232439 is an apocalyptic number.

23321232439 is a deficient number, since it is larger than the sum of its proper divisors (7475481).

23321232439 is an equidigital number, since it uses as much as digits as its factorization.

23321232439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475480.

The product of its digits is 46656, while the sum is 34.

The spelling of 23321232439 in words is "twenty-three billion, three hundred twenty-one million, two hundred thirty-two thousand, four hundred thirty-nine".