1321112303 has 8 divisors (see below), whose sum is σ = 1518185760. Its totient is φ = 1126124640.

The previous prime is 1321112297. The next prime is 1321112323. The reversal of 1321112303 is 3032111231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321112303 - 2¹⁰ = 1321111279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321112323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520088 + ... + 522621.

It is an arithmetic number, because the mean of its divisors is an integer number (189773220).

Almost surely, 2^1321112303 is an apocalyptic number.

1321112303 is a deficient number, since it is larger than the sum of its proper divisors (197073457).

1321112303 is a wasteful number, since it uses less digits than its factorization.

1321112303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042897.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1321112303 is about 36347.1085920187. The cubic root of 1321112303 is about 1097.2693435155.

Adding to 1321112303 its reverse (3032111231), we get a palindrome (4353223534).

The spelling of 1321112303 in words is "one billion, three hundred twenty-one million, one hundred twelve thousand, three hundred three".