1213001213297 has 2 divisors, whose sum is σ = 1213001213298. Its totient is φ = 1213001213296.

The previous prime is 1213001213279. The next prime is 1213001213339. The reversal of 1213001213297 is 7923121003121.

Together with previous prime (1213001213279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1210915373056 + 2085840241 = 1100416^2 + 45671^2 .

It is an emirp because it is prime and its reverse (7923121003121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213001213297 is a prime.

It is a super-2 number, since 2×1213001213297² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213001293297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606500606648 + 606500606649.

It is an arithmetic number, because the mean of its divisors is an integer number (606500606649).

Almost surely, 2^{1213001213297} is an apocalyptic number.

It is an amenable number.

1213001213297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213001213297 is an equidigital number, since it uses as much as digits as its factorization.

1213001213297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 1213001213297 in words is "one trillion, two hundred thirteen billion, one million, two hundred thirteen thousand, two hundred ninety-seven".