21040113120000 has 360 divisors, whose sum is σ = 75356994780144. Its totient is φ = 5179103232000.

The previous prime is 21040113119999. The next prime is 21040113120107. The reversal of 21040113120000 is 2131104012.

It is a super-2 number, since 2×21040113120000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4554094 + ... + 7925906.

Almost surely, 2^{21040113120000} is an apocalyptic number.

21040113120000 is a gapful number since it is divisible by the number (20) 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 21040113120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37678497390072).

21040113120000 is an abundant number, since it is smaller than the sum of its proper divisors (54316881660144).

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

21040113120000 is an equidigital number, since it uses as much as digits as its factorization.

21040113120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371865 (or 3371836 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21040113120000 its reverse (2131104012), we get a palindrome (21042244224012).

The spelling of 21040113120000 in words is "twenty-one trillion, forty billion, one hundred thirteen million, one hundred twenty thousand".