1125334013 has 2 divisors, whose sum is σ = 1125334014. Its totient is φ = 1125334012.

The previous prime is 1125333997. The next prime is 1125334031. The reversal of 1125334013 is 3104335211.

Together with next prime (1125334031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1062955609 + 62378404 = 32603^2 + 7898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125334013 - 2⁴ = 1125333997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125334013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125334073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562667006 + 562667007.

It is an arithmetic number, because the mean of its divisors is an integer number (562667007).

Almost surely, 2^1125334013 is an apocalyptic number.

It is an amenable number.

1125334013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125334013 is an equidigital number, since it uses as much as digits as its factorization.

1125334013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1125334013 is about 33545.9984647946. The cubic root of 1125334013 is about 1040.1448309763.

Adding to 1125334013 its reverse (3104335211), we get a palindrome (4229669224).

The spelling of 1125334013 in words is "one billion, one hundred twenty-five million, three hundred thirty-four thousand, thirteen".