23432112421 has 4 divisors (see below), whose sum is σ = 23977045312. Its totient is φ = 22887179532.

The previous prime is 23432112377. The next prime is 23432112439. The reversal of 23432112421 is 12421123432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23432112421 - 2⁹ = 23432111909 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 (23432110421) 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 3 ways as a sum of consecutive naturals, for example, 272466381 + ... + 272466466.

It is an arithmetic number, because the mean of its divisors is an integer number (5994261328).

Almost surely, 2^23432112421 is an apocalyptic number.

It is an amenable number.

23432112421 is a deficient number, since it is larger than the sum of its proper divisors (544932891).

23432112421 is an equidigital number, since it uses as much as digits as its factorization.

23432112421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544932890.

The product of its digits is 2304, while the sum is 25.

Adding to 23432112421 its reverse (12421123432), we get a palindrome (35853235853).

The spelling of 23432112421 in words is "twenty-three billion, four hundred thirty-two million, one hundred twelve thousand, four hundred twenty-one".