1301025113 has 6 divisors (see below), whose sum is σ = 1382058126. Its totient is φ = 1224493952.

The previous prime is 1301025109. The next prime is 1301025149. The reversal of 1301025113 is 3115201031.

It can be written as a sum of positive squares in 3 ways, for example, as 849547609 + 451477504 = 29147^2 + 21248^2 .

It is not a de Polignac number, because 1301025113 - 2² = 1301025109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301025091 and 1301025100.

It is not an unprimeable number, because it can be changed into a prime (1301022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2250620 + ... + 2251197.

It is an arithmetic number, because the mean of its divisors is an integer number (230343021).

Almost surely, 2^1301025113 is an apocalyptic number.

It is an amenable number.

1301025113 is a deficient number, since it is larger than the sum of its proper divisors (81033013).

1301025113 is an equidigital number, since it uses as much as digits as its factorization.

1301025113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501851 (or 4501834 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1301025113 is about 36069.7257128468. The cubic root of 1301025113 is about 1091.6796797496.

Adding to 1301025113 its reverse (3115201031), we get a palindrome (4416226144).

The spelling of 1301025113 in words is "one billion, three hundred one million, twenty-five thousand, one hundred thirteen".