310121222120989 has 2 divisors, whose sum is σ = 310121222120990. Its totient is φ = 310121222120988.

The previous prime is 310121222120887. The next prime is 310121222121019. The reversal of 310121222120989 is 989021222121013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279664013492964 + 30457208628025 = 16723158^2 + 5518805^2 .

It is a cyclic number.

It is not a de Polignac number, because 310121222120989 - 2²¹ = 310121220023837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310122222120989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155060611060494 + 155060611060495.

It is an arithmetic number, because the mean of its divisors is an integer number (155060611060495).

Almost surely, 2^{310121222120989} is an apocalyptic number.

It is an amenable number.

310121222120989 is a deficient number, since it is larger than the sum of its proper divisors (1).

310121222120989 is an equidigital number, since it uses as much as digits as its factorization.

310121222120989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 310121222120989 in words is "three hundred ten trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, nine hundred eighty-nine".