433243430021 has 8 divisors (see below), whose sum is σ = 435071753688. Its totient is φ = 431415360000.

The previous prime is 433243429921. The next prime is 433243430071. The reversal of 433243430021 is 120034342334.

It can be written as a sum of positive squares in 4 ways, for example, as 139099907521 + 294143522500 = 372961^2 + 542350^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-433243430021 is a prime.

It is a super-2 number, since 2×433243430021² (a number of 24 digits) 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 (433243430071) 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, 3873401 + ... + 3983681.

It is an arithmetic number, because the mean of its divisors is an integer number (54383969211).

Almost surely, 2^433243430021 is an apocalyptic number.

It is an amenable number.

433243430021 is a deficient number, since it is larger than the sum of its proper divisors (1828323667).

433243430021 is a wasteful number, since it uses less digits than its factorization.

433243430021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126823.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 433243430021 its reverse (120034342334), we get a palindrome (553277772355).

The spelling of 433243430021 in words is "four hundred thirty-three billion, two hundred forty-three million, four hundred thirty thousand, twenty-one".