4425123032421 has 32 divisors (see below), whose sum is σ = 7261869619200. Its totient is φ = 2334089283264.

The previous prime is 4425123032387. The next prime is 4425123032437. The reversal of 4425123032421 is 1242303215244.

It is a happy number.

It is not a de Polignac number, because 4425123032421 - 2⁶ = 4425123032357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4425123032521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20757430 + ... + 20969528.

It is an arithmetic number, because the mean of its divisors is an integer number (226933425600).

Almost surely, 2^{4425123032421} is an apocalyptic number.

It is an amenable number.

4425123032421 is a deficient number, since it is larger than the sum of its proper divisors (2836746586779).

4425123032421 is a wasteful number, since it uses less digits than its factorization.

4425123032421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288545.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 4425123032421 its reverse (1242303215244), we get a palindrome (5667426247665).

The spelling of 4425123032421 in words is "four trillion, four hundred twenty-five billion, one hundred twenty-three million, thirty-two thousand, four hundred twenty-one".