23321003213 has 2 divisors, whose sum is σ = 23321003214. Its totient is φ = 23321003212.

The previous prime is 23321003197. The next prime is 23321003227. The reversal of 23321003213 is 31230012332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14265196969 + 9055806244 = 119437^2 + 95162^2 .

It is a cyclic number.

It is not a de Polignac number, because 23321003213 - 2⁴ = 23321003197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23321503213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660501606 + 11660501607.

It is an arithmetic number, because the mean of its divisors is an integer number (11660501607).

Almost surely, 2^23321003213 is an apocalyptic number.

It is an amenable number.

23321003213 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321003213 is an equidigital number, since it uses as much as digits as its factorization.

23321003213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23321003213 its reverse (31230012332), we get a palindrome (54551015545).

The spelling of 23321003213 in words is "twenty-three billion, three hundred twenty-one million, three thousand, two hundred thirteen".