20424133230425 has 12 divisors (see below), whose sum is σ = 25326206088636. Its totient is φ = 16339125369600.

The previous prime is 20424133230401. The next prime is 20424133230433. The reversal of 20424133230425 is 52403233142402.

It can be written as a sum of positive squares in 6 ways, for example, as 2753140429081 + 17670992801344 = 1659259^2 + 4203688^2 .

It is not a de Polignac number, because 20424133230425 - 2⁸ = 20424133230169 is a prime.

It is a super-2 number, since 2×20424133230425² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2207804 + ... + 6761853.

It is an arithmetic number, because the mean of its divisors is an integer number (2110517174053).

Almost surely, 2^{20424133230425} is an apocalyptic number.

20424133230425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20424133230425 is a deficient number, since it is larger than the sum of its proper divisors (4902072858211).

20424133230425 is an equidigital number, since it uses as much as digits as its factorization.

20424133230425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9060748 (or 9060743 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 20424133230425 its reverse (52403233142402), we get a palindrome (72827366372827).

The spelling of 20424133230425 in words is "twenty trillion, four hundred twenty-four billion, one hundred thirty-three million, two hundred thirty thousand, four hundred twenty-five".