1121320433 has 8 divisors (see below), whose sum is σ = 1130890728. Its totient is φ = 1111785984.

The previous prime is 1121320427. The next prime is 1121320457. The reversal of 1121320433 is 3340231211.

It can be written as a sum of positive squares in 4 ways, for example, as 158583649 + 962736784 = 12593^2 + 31028^2 .

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 1121320433 - 2²⁰ = 1120271857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121325433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55841 + ... + 73217.

It is an arithmetic number, because the mean of its divisors is an integer number (141361341).

Almost surely, 2^1121320433 is an apocalyptic number.

It is an amenable number.

1121320433 is a deficient number, since it is larger than the sum of its proper divisors (9570295).

1121320433 is a wasteful number, since it uses less digits than its factorization.

1121320433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17923.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1121320433 is about 33486.1229914722. The cubic root of 1121320433 is about 1038.9067756013.

Adding to 1121320433 its reverse (3340231211), we get a palindrome (4461551644).

The spelling of 1121320433 in words is "one billion, one hundred twenty-one million, three hundred twenty thousand, four hundred thirty-three".