1121320133 has 4 divisors (see below), whose sum is σ = 1121397600. Its totient is φ = 1121242668.

The previous prime is 1121320129. The next prime is 1121320139. The reversal of 1121320133 is 3310231211.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1121320133 - 2² = 1121320129 is a prime.

It is a super-2 number, since 2×1121320133² = 2514717681342275378, 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 (1121320139) 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 3 ways as a sum of consecutive naturals, for example, 9833 + ... + 48366.

It is an arithmetic number, because the mean of its divisors is an integer number (280349400).

Almost surely, 2^1121320133 is an apocalyptic number.

It is an amenable number.

1121320133 is a deficient number, since it is larger than the sum of its proper divisors (77467).

1121320133 is an equidigital number, since it uses as much as digits as its factorization.

1121320133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77466.

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

The square root of 1121320133 is about 33486.1185120043. The cubic root of 1121320133 is about 1038.9066829510.

Adding to 1121320133 its reverse (3310231211), we get a palindrome (4431551344).

The spelling of 1121320133 in words is "one billion, one hundred twenty-one million, three hundred twenty thousand, one hundred thirty-three".