1125317880569 has 2 divisors, whose sum is σ = 1125317880570. Its totient is φ = 1125317880568.

The previous prime is 1125317880461. The next prime is 1125317880571. The reversal of 1125317880569 is 9650887135211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659222205625 + 466095674944 = 811925^2 + 682712^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125317880569 - 2¹⁶ = 1125317815033 is a prime.

It is a super-2 number, since 2×1125317880569² (a number of 25 digits) contains 22 as substring.

Together with 1125317880571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1125317180569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562658940284 + 562658940285.

It is an arithmetic number, because the mean of its divisors is an integer number (562658940285).

Almost surely, 2^{1125317880569} is an apocalyptic number.

It is an amenable number.

1125317880569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125317880569 is an equidigital number, since it uses as much as digits as its factorization.

1125317880569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 56.

The spelling of 1125317880569 in words is "one trillion, one hundred twenty-five billion, three hundred seventeen million, eight hundred eighty thousand, five hundred sixty-nine".