1013221303 has 8 divisors (see below), whose sum is σ = 1069415600. Its totient is φ = 957313728.

The previous prime is 1013221289. The next prime is 1013221331. The reversal of 1013221303 is 3031223101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013221303 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 (1013221103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64398 + ... + 78571.

It is an arithmetic number, because the mean of its divisors is an integer number (133676950).

Almost surely, 2^1013221303 is an apocalyptic number.

1013221303 is a deficient number, since it is larger than the sum of its proper divisors (56194297).

1013221303 is a wasteful number, since it uses less digits than its factorization.

1013221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143361.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1013221303 is about 31831.1373186696. The cubic root of 1013221303 is about 1004.3878198772.

Adding to 1013221303 its reverse (3031223101), we get a palindrome (4044444404).

The spelling of 1013221303 in words is "one billion, thirteen million, two hundred twenty-one thousand, three hundred three".