121369747297 has 2 divisors, whose sum is σ = 121369747298. Its totient is φ = 121369747296.

The previous prime is 121369747267. The next prime is 121369747307. The reversal of 121369747297 is 792747963121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116368994641 + 5000752656 = 341129^2 + 70716^2 .

It is an emirp because it is prime and its reverse (792747963121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121369747297 is a prime.

It is not a weakly prime, because it can be changed into another prime (121369747267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60684873648 + 60684873649.

It is an arithmetic number, because the mean of its divisors is an integer number (60684873649).

Almost surely, 2^121369747297 is an apocalyptic number.

It is an amenable number.

121369747297 is a deficient number, since it is larger than the sum of its proper divisors (1).

121369747297 is an equidigital number, since it uses as much as digits as its factorization.

121369747297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8001504, while the sum is 58.

The spelling of 121369747297 in words is "one hundred twenty-one billion, three hundred sixty-nine million, seven hundred forty-seven thousand, two hundred ninety-seven".