21410143020 has 192 divisors, whose sum is σ = 77416012800. Its totient is φ = 4810752000.

The previous prime is 21410142973. The next prime is 21410143021. The reversal of 21410143020 is 2034101412.

21410143020 is a `hidden beast` number, since 214 + 1 + 0 + 1 + 430 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 21410142984 and 21410143002.

It is not an unprimeable number, because it can be changed into a prime (21410143021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 175020 + ... + 271020.

It is an arithmetic number, because the mean of its divisors is an integer number (403208400).

Almost surely, 2^21410143020 is an apocalyptic number.

21410143020 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 21410143020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38708006400).

21410143020 is an abundant number, since it is smaller than the sum of its proper divisors (56005869780).

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

21410143020 is a wasteful number, since it uses less digits than its factorization.

21410143020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96085 (or 96077 counting only the distinct ones).

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

Adding to 21410143020 its reverse (2034101412), we get a palindrome (23444244432).

The spelling of 21410143020 in words is "twenty-one billion, four hundred ten million, one hundred forty-three thousand, twenty".