30424142431 has 4 divisors (see below), whose sum is σ = 30429163192. Its totient is φ = 30419121672.

The previous prime is 30424142417. The next prime is 30424142447. The reversal of 30424142431 is 13424142403.

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 30424142431 - 2²¹ = 30422045279 is a prime.

It is a super-2 number, since 2×30424142431² (a number of 22 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 30424142431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30424142491) 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, 2501280 + ... + 2513413.

It is an arithmetic number, because the mean of its divisors is an integer number (7607290798).

Almost surely, 2^30424142431 is an apocalyptic number.

30424142431 is a deficient number, since it is larger than the sum of its proper divisors (5020761).

30424142431 is an equidigital number, since it uses as much as digits as its factorization.

30424142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020760.

The product of its (nonzero) digits is 9216, while the sum is 28.

Subtracting from 30424142431 its sum of digits (28), we obtain a palindrome (30424142403).

Adding to 30424142431 its reverse (13424142403), we get a palindrome (43848284834).

The spelling of 30424142431 in words is "thirty billion, four hundred twenty-four million, one hundred forty-two thousand, four hundred thirty-one".