11234289920 has 144 divisors (see below), whose sum is σ = 31038712320. Its totient is φ = 3816087552.

The previous prime is 11234289917. The next prime is 11234289949. The reversal of 11234289920 is 2998243211.

It is a super-2 number, since 2×11234289920² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970889 + ... + 982391.

Almost surely, 2^11234289920 is an apocalyptic number.

11234289920 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 11234289920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15519356160).

11234289920 is an abundant number, since it is smaller than the sum of its proper divisors (19804422400).

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

11234289920 is a wasteful number, since it uses less digits than its factorization.

11234289920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640 (or 11626 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 11234289920 in words is "eleven billion, two hundred thirty-four million, two hundred eighty-nine thousand, nine hundred twenty".