1303210013 has 4 divisors (see below), whose sum is σ = 1489382880. Its totient is φ = 1117037148.

The previous prime is 1303210009. The next prime is 1303210067. The reversal of 1303210013 is 3100123031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1303210013 - 2² = 1303210009 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 1303210013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303210813) 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, 93086423 + ... + 93086436.

It is an arithmetic number, because the mean of its divisors is an integer number (372345720).

Almost surely, 2^1303210013 is an apocalyptic number.

It is an amenable number.

1303210013 is a deficient number, since it is larger than the sum of its proper divisors (186172867).

1303210013 is an equidigital number, since it uses as much as digits as its factorization.

1303210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186172866.

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

The square root of 1303210013 is about 36100.0001800554. Note that the first 3 decimals coincide. The cubic root of 1303210013 is about 1092.2904486315.

Adding to 1303210013 its reverse (3100123031), we get a palindrome (4403333044).

The spelling of 1303210013 in words is "one billion, three hundred three million, two hundred ten thousand, thirteen".