1303012013 has 4 divisors (see below), whose sum is σ = 1303093308. Its totient is φ = 1302930720.

The previous prime is 1303011977. The next prime is 1303012019. The reversal of 1303012013 is 3102103031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 822657124 + 480354889 = 28682^2 + 21917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303012013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303012019) 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, 7706 + ... + 51627.

It is an arithmetic number, because the mean of its divisors is an integer number (325773327).

Almost surely, 2^1303012013 is an apocalyptic number.

It is an amenable number.

1303012013 is a deficient number, since it is larger than the sum of its proper divisors (81295).

1303012013 is an equidigital number, since it uses as much as digits as its factorization.

1303012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81294.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1303012013 is about 36097.2576936254. The cubic root of 1303012013 is about 1092.2351276777.

Adding to 1303012013 its reverse (3102103031), we get a palindrome (4405115044).

The spelling of 1303012013 in words is "one billion, three hundred three million, twelve thousand, thirteen".