23331213011321 has 2 divisors, whose sum is σ = 23331213011322. Its totient is φ = 23331213011320.

The previous prime is 23331213011189. The next prime is 23331213011339. The reversal of 23331213011321 is 12311031213332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19975223503225 + 3355989508096 = 4469365^2 + 1831936^2 .

It is a cyclic number.

It is not a de Polignac number, because 23331213011321 - 2¹⁰ = 23331213010297 is a prime.

It is not a weakly prime, because it can be changed into another prime (23331213011921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665606505660 + 11665606505661.

It is an arithmetic number, because the mean of its divisors is an integer number (11665606505661).

Almost surely, 2^{23331213011321} is an apocalyptic number.

It is an amenable number.

23331213011321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331213011321 is an equidigital number, since it uses as much as digits as its factorization.

23331213011321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 23331213011321 its reverse (12311031213332), we get a palindrome (35642244224653).

It can be divided in two parts, 23331213011 and 321, that added together give a palindrome (23331213332).

The spelling of 23331213011321 in words is "twenty-three trillion, three hundred thirty-one billion, two hundred thirteen million, eleven thousand, three hundred twenty-one".