1013321303 has 4 divisors (see below), whose sum is σ = 1017060768. Its totient is φ = 1009581840.

The previous prime is 1013321299. The next prime is 1013321317. The reversal of 1013321303 is 3031233101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013321303 - 2² = 1013321299 is a prime.

It is a super-2 number, since 2×1013321303² = 2053640126227235618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013321383) 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, 1869326 + ... + 1869867.

It is an arithmetic number, because the mean of its divisors is an integer number (254265192).

Almost surely, 2^1013321303 is an apocalyptic number.

1013321303 is a deficient number, since it is larger than the sum of its proper divisors (3739465).

1013321303 is an equidigital number, since it uses as much as digits as its factorization.

1013321303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739464.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1013321303 is about 31832.7080689030. The cubic root of 1013321303 is about 1004.4208615163.

Adding to 1013321303 its reverse (3031233101), we get a palindrome (4044554404).

The spelling of 1013321303 in words is "one billion, thirteen million, three hundred twenty-one thousand, three hundred three".