1043221433 has 4 divisors (see below), whose sum is σ = 1043326080. Its totient is φ = 1043116788.

The previous prime is 1043221411. The next prime is 1043221469. The reversal of 1043221433 is 3341223401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3341223401 = 17 ⋅196542553.

It is a cyclic number.

It is not a de Polignac number, because 1043221433 - 2⁶ = 1043221369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043221399 and 1043221408.

It is not an unprimeable number, because it can be changed into a prime (1043220433) 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, 35585 + ... + 57902.

It is an arithmetic number, because the mean of its divisors is an integer number (260831520).

Almost surely, 2^1043221433 is an apocalyptic number.

It is an amenable number.

1043221433 is a deficient number, since it is larger than the sum of its proper divisors (104647).

1043221433 is an equidigital number, since it uses as much as digits as its factorization.

1043221433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104646.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1043221433 is about 32298.9385738912. The cubic root of 1043221433 is about 1014.2044233686.

Adding to 1043221433 its reverse (3341223401), we get a palindrome (4384444834).

The spelling of 1043221433 in words is "one billion, forty-three million, two hundred twenty-one thousand, four hundred thirty-three".