11140523420 has 96 divisors (see below), whose sum is σ = 26670409920. Its totient is φ = 3879106560.

The previous prime is 11140523417. The next prime is 11140523431. The reversal of 11140523420 is 2432504111.

It is a super-2 number, since 2×11140523420² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307040 + ... + 341400.

It is an arithmetic number, because the mean of its divisors is an integer number (277816770).

Almost surely, 2^11140523420 is an apocalyptic number.

11140523420 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 11140523420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13335204960).

11140523420 is an abundant number, since it is smaller than the sum of its proper divisors (15529886500).

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

11140523420 is a wasteful number, since it uses less digits than its factorization.

11140523420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34455 (or 34453 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 11140523420 in words is "eleven billion, one hundred forty million, five hundred twenty-three thousand, four hundred twenty".