11891225430 has 144 divisors (see below), whose sum is σ = 37858045680. Its totient is φ = 2574923904.

The previous prime is 11891225419. The next prime is 11891225443. The reversal of 11891225430 is 3452219811.

11891225430 is a `hidden beast` number, since 1 + 1 + 8 + 91 + 22 + 543 + 0 = 666.

11891225430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12832 + ... + 154748.

It is an arithmetic number, because the mean of its divisors is an integer number (262903095).

Almost surely, 2^11891225430 is an apocalyptic number.

11891225430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11891225430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18929022840).

11891225430 is an abundant number, since it is smaller than the sum of its proper divisors (25966820250).

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

11891225430 is a wasteful number, since it uses less digits than its factorization.

11891225430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141963 (or 141953 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 11891225430 in words is "eleven billion, eight hundred ninety-one million, two hundred twenty-five thousand, four hundred thirty".