425431134523 has 8 divisors (see below), whose sum is σ = 430604964000. Its totient is φ = 420266054208.

The previous prime is 425431134521. The next prime is 425431134559. The reversal of 425431134523 is 325431134524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425431134523 - 2¹ = 425431134521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425431134521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2089423 + ... + 2283976.

It is an arithmetic number, because the mean of its divisors is an integer number (53825620500).

Almost surely, 2^425431134523 is an apocalyptic number.

425431134523 is a deficient number, since it is larger than the sum of its proper divisors (5173829477).

425431134523 is a wasteful number, since it uses less digits than its factorization.

425431134523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374581.

The product of its digits is 172800, while the sum is 37.

Subtracting from 425431134523 its reverse (325431134524), we obtain a palindrome (99999999999).

The spelling of 425431134523 in words is "four hundred twenty-five billion, four hundred thirty-one million, one hundred thirty-four thousand, five hundred twenty-three".