23313314213221 has 2 divisors, whose sum is σ = 23313314213222. Its totient is φ = 23313314213220.

The previous prime is 23313314213207. The next prime is 23313314213257. The reversal of 23313314213221 is 12231241331332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21510014376321 + 1803299836900 = 4637889^2 + 1342870^2 .

It is a cyclic number.

It is not a de Polignac number, because 23313314213221 - 2⁴³ = 14517221191013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23313314213821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656657106610 + 11656657106611.

It is an arithmetic number, because the mean of its divisors is an integer number (11656657106611).

Almost surely, 2^{23313314213221} is an apocalyptic number.

It is an amenable number.

23313314213221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23313314213221 is an equidigital number, since it uses as much as digits as its factorization.

23313314213221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

Adding to 23313314213221 its reverse (12231241331332), we get a palindrome (35544555544553).

The spelling of 23313314213221 in words is "twenty-three trillion, three hundred thirteen billion, three hundred fourteen million, two hundred thirteen thousand, two hundred twenty-one".