1012123202197 has 2 divisors, whose sum is σ = 1012123202198. Its totient is φ = 1012123202196.

The previous prime is 1012123202183. The next prime is 1012123202213. The reversal of 1012123202197 is 7912023212101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001042271441 + 11080930756 = 1000521^2 + 105266^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012123202197 - 2²⁷ = 1011988984469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012123202107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506061601098 + 506061601099.

It is an arithmetic number, because the mean of its divisors is an integer number (506061601099).

Almost surely, 2^{1012123202197} is an apocalyptic number.

It is an amenable number.

1012123202197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012123202197 is an equidigital number, since it uses as much as digits as its factorization.

1012123202197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 1012123202197 its reverse (7912023212101), we get a palindrome (8924146414298).

The spelling of 1012123202197 in words is "one trillion, twelve billion, one hundred twenty-three million, two hundred two thousand, one hundred ninety-seven".