1121131303 has 4 divisors (see below), whose sum is σ = 1147204168. Its totient is φ = 1095058440.

The previous prime is 1121131273. The next prime is 1121131321. The reversal of 1121131303 is 3031311211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3031311211 = 16033 ⋅189067.

It is a cyclic number.

It is not a de Polignac number, because 1121131303 - 2¹³ = 1121123111 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 (1121131003) 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, 13036368 + ... + 13036453.

It is an arithmetic number, because the mean of its divisors is an integer number (286801042).

Almost surely, 2^1121131303 is an apocalyptic number.

1121131303 is a deficient number, since it is larger than the sum of its proper divisors (26072865).

1121131303 is an equidigital number, since it uses as much as digits as its factorization.

1121131303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26072864.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1121131303 is about 33483.2988667485. The cubic root of 1121131303 is about 1038.8483624779.

Adding to 1121131303 its reverse (3031311211), we get a palindrome (4152442514).

The spelling of 1121131303 in words is "one billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred three".