1125513103441 has 2 divisors, whose sum is σ = 1125513103442. Its totient is φ = 1125513103440.

The previous prime is 1125513103439. The next prime is 1125513103447. The reversal of 1125513103441 is 1443013155211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125500322816 + 12780625 = 1060896^2 + 3575^2 .

It is an emirp because it is prime and its reverse (1443013155211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1125513103441 - 2¹ = 1125513103439 is a prime.

Together with 1125513103439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1125513103447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562756551720 + 562756551721.

It is an arithmetic number, because the mean of its divisors is an integer number (562756551721).

Almost surely, 2^{1125513103441} is an apocalyptic number.

It is an amenable number.

1125513103441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125513103441 is an equidigital number, since it uses as much as digits as its factorization.

1125513103441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 1125513103441 its reverse (1443013155211), we get a palindrome (2568526258652).

The spelling of 1125513103441 in words is "one trillion, one hundred twenty-five billion, five hundred thirteen million, one hundred three thousand, four hundred forty-one".