1303133213 has 4 divisors (see below), whose sum is σ = 1307738208. Its totient is φ = 1298528220.

The previous prime is 1303133191. The next prime is 1303133243. The reversal of 1303133213 is 3123313031.

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 1303133213 - 2¹⁰ = 1303132189 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 (1303133243) 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, 2302073 + ... + 2302638.

It is an arithmetic number, because the mean of its divisors is an integer number (326934552).

Almost surely, 2^1303133213 is an apocalyptic number.

It is an amenable number.

1303133213 is a deficient number, since it is larger than the sum of its proper divisors (4604995).

1303133213 is an equidigital number, since it uses as much as digits as its factorization.

1303133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604994.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1303133213 is about 36098.9364524774. The cubic root of 1303133213 is about 1092.2689914723.

Adding to 1303133213 its reverse (3123313031), we get a palindrome (4426446244).

The spelling of 1303133213 in words is "one billion, three hundred three million, one hundred thirty-three thousand, two hundred thirteen".