1213241917297 has 2 divisors, whose sum is σ = 1213241917298. Its totient is φ = 1213241917296.

The previous prime is 1213241917291. The next prime is 1213241917313. The reversal of 1213241917297 is 7927191423121.

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., 1207546045456 + 5695871841 = 1098884^2 + 75471^2 .

It is an emirp because it is prime and its reverse (7927191423121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213241917297 - 2²⁷ = 1213107699569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213241917297.

It is not a weakly prime, because it can be changed into another prime (1213241917291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606620958648 + 606620958649.

It is an arithmetic number, because the mean of its divisors is an integer number (606620958649).

Almost surely, 2^{1213241917297} is an apocalyptic number.

It is an amenable number.

1213241917297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213241917297 is an equidigital number, since it uses as much as digits as its factorization.

1213241917297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 49.

The spelling of 1213241917297 in words is "one trillion, two hundred thirteen billion, two hundred forty-one million, nine hundred seventeen thousand, two hundred ninety-seven".