23331312212321 has 4 divisors (see below), whose sum is σ = 24083935186944. Its totient is φ = 22578689237700.

The previous prime is 23331312212317. The next prime is 23331312212333. The reversal of 23331312212321 is 12321221313332.

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 23331312212321 - 2² = 23331312212317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23331312211321) 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, 376311487265 + ... + 376311487326.

It is an arithmetic number, because the mean of its divisors is an integer number (6020983796736).

Almost surely, 2^{23331312212321} is an apocalyptic number.

It is an amenable number.

23331312212321 is a deficient number, since it is larger than the sum of its proper divisors (752622974623).

23331312212321 is an equidigital number, since it uses as much as digits as its factorization.

23331312212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752622974622.

The product of its digits is 7776, while the sum is 29.

Adding to 23331312212321 its reverse (12321221313332), we get a palindrome (35652533525653).

The spelling of 23331312212321 in words is "twenty-three trillion, three hundred thirty-one billion, three hundred twelve million, two hundred twelve thousand, three hundred twenty-one".