21030023320110 has 288 divisors, whose sum is σ = 65277605888352. Its totient is φ = 4681128775680.

The previous prime is 21030023320093. The next prime is 21030023320127. The reversal of 21030023320110 is 1102332003012.

21030023320110 is a `hidden beast` number, since 2 + 1 + 0 + 300 + 233 + 20 + 110 = 666.

It is an interprime number because it is at equal distance from previous prime (21030023320093) and next prime (21030023320127).

It is a super-3 number, since 3×21030023320110³ (a number of 41 digits) contains 333 as substring.

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 143 ways as a sum of consecutive naturals, for example, 63740770 + ... + 64069850.

It is an arithmetic number, because the mean of its divisors is an integer number (226658353779).

Almost surely, 2^{21030023320110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21030023320110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32638802944176).

21030023320110 is an abundant number, since it is smaller than the sum of its proper divisors (44247582568242).

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

21030023320110 is a wasteful number, since it uses less digits than its factorization.

21030023320110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329488 (or 329478 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21030023320110 its reverse (1102332003012), we get a palindrome (22132355323122).

The spelling of 21030023320110 in words is "twenty-one trillion, thirty billion, twenty-three million, three hundred twenty thousand, one hundred ten".