4233431400421 has 4 divisors (see below), whose sum is σ = 4302831915244. Its totient is φ = 4164030885600.

The previous prime is 4233431400403. The next prime is 4233431400433. The reversal of 4233431400421 is 1240041343324.

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 1551795895521 + 2681635504900 = 1245711^2 + 1637570^2 .

It is a cyclic number.

It is not a de Polignac number, because 4233431400421 - 2⁹ = 4233431399909 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 (4233431409421) 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, 34700257320 + ... + 34700257441.

It is an arithmetic number, because the mean of its divisors is an integer number (1075707978811).

Almost surely, 2^{4233431400421} is an apocalyptic number.

It is an amenable number.

4233431400421 is a deficient number, since it is larger than the sum of its proper divisors (69400514823).

4233431400421 is an equidigital number, since it uses as much as digits as its factorization.

4233431400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69400514822.

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

Adding to 4233431400421 its reverse (1240041343324), we get a palindrome (5473472743745).

The spelling of 4233431400421 in words is "four trillion, two hundred thirty-three billion, four hundred thirty-one million, four hundred thousand, four hundred twenty-one".