1210313101997 has 2 divisors, whose sum is σ = 1210313101998. Its totient is φ = 1210313101996.

The previous prime is 1210313101993. The next prime is 1210313102021. The reversal of 1210313101997 is 7991013130121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1160114251396 + 50198850601 = 1077086^2 + 224051^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210313101997 - 2² = 1210313101993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1210313101997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210313101993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605156550998 + 605156550999.

It is an arithmetic number, because the mean of its divisors is an integer number (605156550999).

Almost surely, 2^{1210313101997} is an apocalyptic number.

It is an amenable number.

1210313101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210313101997 is an equidigital number, since it uses as much as digits as its factorization.

1210313101997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 38.

The spelling of 1210313101997 in words is "one trillion, two hundred ten billion, three hundred thirteen million, one hundred one thousand, nine hundred ninety-seven".