12240431430 has 32 divisors (see below), whose sum is σ = 29748902400. Its totient is φ = 3222796512.

The previous prime is 12240431419. The next prime is 12240431431. The reversal of 12240431430 is 3413404221.

It is a self number, because there is not a number n which added to its sum of digits gives 12240431430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240431431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2580000 + ... + 2584739.

It is an arithmetic number, because the mean of its divisors is an integer number (929653200).

Almost surely, 2^12240431430 is an apocalyptic number.

12240431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12240431430 is an abundant number, since it is smaller than the sum of its proper divisors (17508470970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12240431430 is a wasteful number, since it uses less digits than its factorization.

12240431430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164828.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12240431430 its reverse (3413404221), we get a palindrome (15653835651).

The spelling of 12240431430 in words is "twelve billion, two hundred forty million, four hundred thirty-one thousand, four hundred thirty".