420250034431 has 4 divisors (see below), whose sum is σ = 425569655200. Its totient is φ = 414930413664.

The previous prime is 420250034423. The next prime is 420250034489. The reversal of 420250034431 is 134430052024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420250034431 - 2³ = 420250034423 is a prime.

It is a super-2 number, since 2×420250034431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420250034431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420250034231) 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, 2659810266 + ... + 2659810423.

It is an arithmetic number, because the mean of its divisors is an integer number (106392413800).

Almost surely, 2^420250034431 is an apocalyptic number.

420250034431 is a deficient number, since it is larger than the sum of its proper divisors (5319620769).

420250034431 is an equidigital number, since it uses as much as digits as its factorization.

420250034431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319620768.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 420250034431 its reverse (134430052024), we get a palindrome (554680086455).

The spelling of 420250034431 in words is "four hundred twenty billion, two hundred fifty million, thirty-four thousand, four hundred thirty-one".