1121430433 has 4 divisors (see below), whose sum is σ = 1128573460. Its totient is φ = 1114287408.

The previous prime is 1121430421. The next prime is 1121430439. The reversal of 1121430433 is 3340341211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 409981504 + 711448929 = 20248^2 + 26673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121430433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121430439) 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, 3571278 + ... + 3571591.

It is an arithmetic number, because the mean of its divisors is an integer number (282143365).

Almost surely, 2^1121430433 is an apocalyptic number.

It is an amenable number.

1121430433 is a deficient number, since it is larger than the sum of its proper divisors (7143027).

1121430433 is an equidigital number, since it uses as much as digits as its factorization.

1121430433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143026.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1121430433 is about 33487.7654226137. The cubic root of 1121430433 is about 1038.9407462681.

Adding to 1121430433 its reverse (3340341211), we get a palindrome (4461771644).

The spelling of 1121430433 in words is "one billion, one hundred twenty-one million, four hundred thirty thousand, four hundred thirty-three".