23200012321 has 2 divisors, whose sum is σ = 23200012322. Its totient is φ = 23200012320.

The previous prime is 23200012309. The next prime is 23200012373. The reversal of 23200012321 is 12321000232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17932155921 + 5267856400 = 133911^2 + 72580^2 .

It is a cyclic number.

It is not a de Polignac number, because 23200012321 - 2⁷ = 23200012193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23200012295 and 23200012304.

It is not a weakly prime, because it can be changed into another prime (23200012621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600006160 + 11600006161.

It is an arithmetic number, because the mean of its divisors is an integer number (11600006161).

Almost surely, 2^23200012321 is an apocalyptic number.

It is an amenable number.

23200012321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23200012321 is an equidigital number, since it uses as much as digits as its factorization.

23200012321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23200012321 its reverse (12321000232), we get a palindrome (35521012553).

The spelling of 23200012321 in words is "twenty-three billion, two hundred million, twelve thousand, three hundred twenty-one".