310213013013221 has 2 divisors, whose sum is σ = 310213013013222. Its totient is φ = 310213013013220.

The previous prime is 310213013013209. The next prime is 310213013013301. The reversal of 310213013013221 is 122310310312013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310206849036100 + 6163977121 = 17612690^2 + 78511^2 .

It is a cyclic number.

It is not a de Polignac number, because 310213013013221 - 2¹⁰ = 310213013012197 is a prime.

It is a super-2 number, since 2×310213013013221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310213013013121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155106506506610 + 155106506506611.

It is an arithmetic number, because the mean of its divisors is an integer number (155106506506611).

Almost surely, 2^{310213013013221} is an apocalyptic number.

It is an amenable number.

310213013013221 is a deficient number, since it is larger than the sum of its proper divisors (1).

310213013013221 is an equidigital number, since it uses as much as digits as its factorization.

310213013013221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 310213013013221 its reverse (122310310312013), we get a palindrome (432523323325234).

The spelling of 310213013013221 in words is "three hundred ten trillion, two hundred thirteen billion, thirteen million, thirteen thousand, two hundred twenty-one".