21411230100 has 72 divisors (see below), whose sum is σ = 66715209120. Its totient is φ = 5270455680.

The previous prime is 21411230063. The next prime is 21411230117. The reversal of 21411230100 is 103211412.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21411230100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2741130 + ... + 2748929.

Almost surely, 2^21411230100 is an apocalyptic number.

21411230100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21411230100 is an abundant number, since it is smaller than the sum of its proper divisors (45303979020).

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

21411230100 is a wasteful number, since it uses less digits than its factorization.

21411230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490089 (or 5490082 counting only the distinct ones).

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

Adding to 21411230100 its reverse (103211412), we get a palindrome (21514441512).

The spelling of 21411230100 in words is "twenty-one billion, four hundred eleven million, two hundred thirty thousand, one hundred".