11909031120 has 240 divisors, whose sum is σ = 45788950272. Its totient is φ = 2717245440.

The previous prime is 11909031107. The next prime is 11909031133. The reversal of 11909031120 is 2113090911.

It is an interprime number because it is at equal distance from previous prime (11909031107) and next prime (11909031133).

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3390165 + ... + 3393675.

Almost surely, 2^11909031120 is an apocalyptic number.

11909031120 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 11909031120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22894475136).

11909031120 is an abundant number, since it is smaller than the sum of its proper divisors (33879919152).

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

11909031120 is a wasteful number, since it uses less digits than its factorization.

11909031120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210 (or 4201 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The spelling of 11909031120 in words is "eleven billion, nine hundred nine million, thirty-one thousand, one hundred twenty".