21420403000110 has 192 divisors, whose sum is σ = 58290504450048. Its totient is φ = 5447218394112.

The previous prime is 21420403000093. The next prime is 21420403000219. The reversal of 21420403000110 is 1100030402412.

21420403000110 is a `hidden beast` number, since 214 + 2 + 0 + 40 + 300 + 0 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2748668374 + ... + 2748676166.

It is an arithmetic number, because the mean of its divisors is an integer number (303596377344).

Almost surely, 2^{21420403000110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21420403000110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29145252225024).

21420403000110 is an abundant number, since it is smaller than the sum of its proper divisors (36870101449938).

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

21420403000110 is a wasteful number, since it uses less digits than its factorization.

21420403000110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11679 (or 11676 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21420403000110 its reverse (1100030402412), we get a palindrome (22520433402522).

The spelling of 21420403000110 in words is "twenty-one trillion, four hundred twenty billion, four hundred three million, one hundred ten", and thus it is an aban number.