1321013022349 has 2 divisors, whose sum is σ = 1321013022350. Its totient is φ = 1321013022348.

The previous prime is 1321013022323. The next prime is 1321013022421. The reversal of 1321013022349 is 9432203101231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1149602118025 + 171410904324 = 1072195^2 + 414018^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321013022349 - 2²⁹ = 1320476151437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321013022349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321013022319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660506511174 + 660506511175.

It is an arithmetic number, because the mean of its divisors is an integer number (660506511175).

Almost surely, 2^{1321013022349} is an apocalyptic number.

It is an amenable number.

1321013022349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321013022349 is an equidigital number, since it uses as much as digits as its factorization.

1321013022349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 1321013022349 in words is "one trillion, three hundred twenty-one billion, thirteen million, twenty-two thousand, three hundred forty-nine".