11321432430 has 64 divisors (see below), whose sum is σ = 33876085248. Its totient is φ = 2352504960.

The previous prime is 11321432429. The next prime is 11321432443. The reversal of 11321432430 is 3423412311.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11321432430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2448217 + ... + 2452836.

It is an arithmetic number, because the mean of its divisors is an integer number (529313832).

Almost surely, 2^11321432430 is an apocalyptic number.

11321432430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11321432430 is an abundant number, since it is smaller than the sum of its proper divisors (22554652818).

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

11321432430 is a wasteful number, since it uses less digits than its factorization.

11321432430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901081.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11321432430 its reverse (3423412311), we get a palindrome (14744844741).

The spelling of 11321432430 in words is "eleven billion, three hundred twenty-one million, four hundred thirty-two thousand, four hundred thirty".