4425131221431 has 24 divisors (see below), whose sum is σ = 6101110883280. Its totient is φ = 2852663546880.

The previous prime is 4425131221411. The next prime is 4425131221439. The reversal of 4425131221431 is 1341221315244.

It is not a de Polignac number, because 4425131221431 - 2¹⁰ = 4425131220407 is a prime.

It is a super-2 number, since 2×4425131221431² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4425131221392 and 4425131221401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4425131221439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3312796 + ... + 4452513.

It is an arithmetic number, because the mean of its divisors is an integer number (254212953470).

Almost surely, 2^{4425131221431} is an apocalyptic number.

4425131221431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4425131221431 is a deficient number, since it is larger than the sum of its proper divisors (1675979661849).

4425131221431 is a wasteful number, since it uses less digits than its factorization.

4425131221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765507 (or 7765466 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

Adding to 4425131221431 its reverse (1341221315244), we get a palindrome (5766352536675).

The spelling of 4425131221431 in words is "four trillion, four hundred twenty-five billion, one hundred thirty-one million, two hundred twenty-one thousand, four hundred thirty-one".