21411103030400 has 96 divisors (see below), whose sum is σ = 54715981742100. Its totient is φ = 8269115617280.

The previous prime is 21411103030393. The next prime is 21411103030423. The reversal of 21411103030400 is 403030111412.

It can be written as a sum of positive squares in 6 ways, for example, as 10874535094336 + 10536567936064 = 3297656^2 + 3246008^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115268747 + ... + 115454346.

Almost surely, 2^{21411103030400} is an apocalyptic number.

21411103030400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21411103030400 is an abundant number, since it is smaller than the sum of its proper divisors (33304878711700).

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

21411103030400 is a wasteful number, since it uses less digits than its factorization.

21411103030400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230723146 (or 230723129 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21411103030400 its reverse (403030111412), we get a palindrome (21814133141812).

The spelling of 21411103030400 in words is "twenty-one trillion, four hundred eleven billion, one hundred three million, thirty thousand, four hundred".