1121403233 has 4 divisors (see below), whose sum is σ = 1160072340. Its totient is φ = 1082734128.

The previous prime is 1121403229. The next prime is 1121403251. The reversal of 1121403233 is 3323041211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3323041211 = 7 ⋅474720173.

It can be written as a sum of positive squares in 2 ways, for example, as 521300224 + 600103009 = 22832^2 + 24497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121403233 - 2² = 1121403229 is a prime.

It is a super-3 number, since 3×1121403233³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121403223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19334510 + ... + 19334567.

It is an arithmetic number, because the mean of its divisors is an integer number (290018085).

Almost surely, 2^1121403233 is an apocalyptic number.

It is an amenable number.

1121403233 is a deficient number, since it is larger than the sum of its proper divisors (38669107).

1121403233 is an equidigital number, since it uses as much as digits as its factorization.

1121403233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38669106.

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

The square root of 1121403233 is about 33487.3593016828. The cubic root of 1121403233 is about 1038.9323464554.

Adding to 1121403233 its reverse (3323041211), we get a palindrome (4444444444).

The spelling of 1121403233 in words is "one billion, one hundred twenty-one million, four hundred three thousand, two hundred thirty-three".