1299975524117 has 2 divisors, whose sum is σ = 1299975524118. Its totient is φ = 1299975524116.

The previous prime is 1299975524087. The next prime is 1299975524131. The reversal of 1299975524117 is 7114255799921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1237998923716 + 61976600401 = 1112654^2 + 248951^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299975524117 - 2⁶ = 1299975524053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1299975524117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299975524017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649987762058 + 649987762059.

It is an arithmetic number, because the mean of its divisors is an integer number (649987762059).

Almost surely, 2^{1299975524117} is an apocalyptic number.

It is an amenable number.

1299975524117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299975524117 is an equidigital number, since it uses as much as digits as its factorization.

1299975524117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14288400, while the sum is 62.

The spelling of 1299975524117 in words is "one trillion, two hundred ninety-nine billion, nine hundred seventy-five million, five hundred twenty-four thousand, one hundred seventeen".