23132113421 has 4 divisors (see below), whose sum is σ = 23524183200. Its totient is φ = 22740043644.

The previous prime is 23132113387. The next prime is 23132113423. The reversal of 23132113421 is 12431123132.

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 23132113421 - 2¹⁰ = 23132112397 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 (23132113423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196034801 + ... + 196034918.

It is an arithmetic number, because the mean of its divisors is an integer number (5881045800).

Almost surely, 2^23132113421 is an apocalyptic number.

It is an amenable number.

23132113421 is a deficient number, since it is larger than the sum of its proper divisors (392069779).

23132113421 is an equidigital number, since it uses as much as digits as its factorization.

23132113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392069778.

The product of its digits is 864, while the sum is 23.

Adding to 23132113421 its reverse (12431123132), we get a palindrome (35563236553).

The spelling of 23132113421 in words is "twenty-three billion, one hundred thirty-two million, one hundred thirteen thousand, four hundred twenty-one".