1301205513 has 8 divisors (see below), whose sum is σ = 1742140576. Its totient is φ = 863870400.

The previous prime is 1301205497. The next prime is 1301205533. The reversal of 1301205513 is 3155021031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1301205513 - 2⁴ = 1301205497 is a prime.

It is a Duffinian number.

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 1301205513.

It is not an unprimeable number, because it can be changed into a prime (1301205533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899143 + ... + 900588.

It is an arithmetic number, because the mean of its divisors is an integer number (217767572).

Almost surely, 2^1301205513 is an apocalyptic number.

It is an amenable number.

1301205513 is a deficient number, since it is larger than the sum of its proper divisors (440935063).

1301205513 is a wasteful number, since it uses less digits than its factorization.

1301205513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799975.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1301205513 is about 36072.2263382786. The cubic root of 1301205513 is about 1091.7301348126.

Adding to 1301205513 its reverse (3155021031), we get a palindrome (4456226544).

The spelling of 1301205513 in words is "one billion, three hundred one million, two hundred five thousand, five hundred thirteen".