1301002013 has 4 divisors (see below), whose sum is σ = 1302970908. Its totient is φ = 1299033120.

The previous prime is 1301002007. The next prime is 1301002049. The reversal of 1301002013 is 3102001031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1058981764 + 242020249 = 32542^2 + 15557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301002013 - 2¹² = 1300997917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301001985 and 1301002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301002093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983456 + ... + 984777.

It is an arithmetic number, because the mean of its divisors is an integer number (325742727).

Almost surely, 2^1301002013 is an apocalyptic number.

It is an amenable number.

1301002013 is a deficient number, since it is larger than the sum of its proper divisors (1968895).

1301002013 is an equidigital number, since it uses as much as digits as its factorization.

1301002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968894.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1301002013 is about 36069.4054982890. The cubic root of 1301002013 is about 1091.6732187034.

Adding to 1301002013 its reverse (3102001031), we get a palindrome (4403003044).

The spelling of 1301002013 in words is "one billion, three hundred one million, two thousand, thirteen".