11992191120 has 480 divisors, whose sum is σ = 50077128192. Its totient is φ = 2504245248.

The previous prime is 11992191103. The next prime is 11992191137. The reversal of 11992191120 is 2119129911.

It is an interprime number because it is at equal distance from previous prime (11992191103) and next prime (11992191137).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6747672 + ... + 6749448.

Almost surely, 2^11992191120 is an apocalyptic number.

11992191120 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 11992191120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25038564096).

11992191120 is an abundant number, since it is smaller than the sum of its proper divisors (38084937072).

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

11992191120 is a wasteful number, since it uses less digits than its factorization.

11992191120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 36.

The spelling of 11992191120 in words is "eleven billion, nine hundred ninety-two million, one hundred ninety-one thousand, one hundred twenty".