23432421013 has 4 divisors (see below), whose sum is σ = 23471025280. Its totient is φ = 23393816748.

The previous prime is 23432420987. The next prime is 23432421031. The reversal of 23432421013 is 31012423432.

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 23432421013 - 2¹⁷ = 23432289941 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 (23432421073) 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, 19301223 + ... + 19302436.

It is an arithmetic number, because the mean of its divisors is an integer number (5867756320).

Almost surely, 2^23432421013 is an apocalyptic number.

It is an amenable number.

23432421013 is a deficient number, since it is larger than the sum of its proper divisors (38604267).

23432421013 is an equidigital number, since it uses as much as digits as its factorization.

23432421013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38604266.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23432421013 its reverse (31012423432), we get a palindrome (54444844445).

The spelling of 23432421013 in words is "twenty-three billion, four hundred thirty-two million, four hundred twenty-one thousand, thirteen".