23051432321 has 4 divisors (see below), whose sum is σ = 23795026944. Its totient is φ = 22307837700.

The previous prime is 23051432317. The next prime is 23051432323. The reversal of 23051432321 is 12323415032.

It is a happy number.

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 23051432321 - 2² = 23051432317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23051432323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371797265 + ... + 371797326.

It is an arithmetic number, because the mean of its divisors is an integer number (5948756736).

Almost surely, 2^23051432321 is an apocalyptic number.

It is an amenable number.

23051432321 is a deficient number, since it is larger than the sum of its proper divisors (743594623).

23051432321 is an equidigital number, since it uses as much as digits as its factorization.

23051432321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743594622.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 23051432321 its reverse (12323415032), we get a palindrome (35374847353).

The spelling of 23051432321 in words is "twenty-three billion, fifty-one million, four hundred thirty-two thousand, three hundred twenty-one".