11840431000 has 128 divisors (see below), whose sum is σ = 28488620160. Its totient is φ = 4603392000.

The previous prime is 11840430977. The next prime is 11840431007. The reversal of 11840431000 is 13404811.

11840431000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11840431000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11840431007) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19966704 + ... + 19967296.

It is an arithmetic number, because the mean of its divisors is an integer number (222567345).

Almost surely, 2^11840431000 is an apocalyptic number.

11840431000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11840431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14244310080).

11840431000 is an abundant number, since it is smaller than the sum of its proper divisors (16648189160).

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

11840431000 is a wasteful number, since it uses less digits than its factorization.

11840431000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11840431000 its reverse (13404811), we get a palindrome (11853835811).

The spelling of 11840431000 in words is "eleven billion, eight hundred forty million, four hundred thirty-one thousand".