433123044421 has 4 divisors (see below), whose sum is σ = 433205817292. Its totient is φ = 433040271552.

The previous prime is 433123044407. The next prime is 433123044437. The reversal of 433123044421 is 124440321334.

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 386050968900 + 47072075521 = 621330^2 + 216961^2 .

It is a cyclic number.

It is not a de Polignac number, because 433123044421 - 2²¹ = 433120947269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433123044401) 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, 41378586 + ... + 41389051.

It is an arithmetic number, because the mean of its divisors is an integer number (108301454323).

Almost surely, 2^433123044421 is an apocalyptic number.

It is an amenable number.

433123044421 is a deficient number, since it is larger than the sum of its proper divisors (82772871).

433123044421 is an equidigital number, since it uses as much as digits as its factorization.

433123044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82772870.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 433123044421 its reverse (124440321334), we get a palindrome (557563365755).

The spelling of 433123044421 in words is "four hundred thirty-three billion, one hundred twenty-three million, forty-four thousand, four hundred twenty-one".