21030114 has 48 divisors (see below), whose sum is σ = 49297248. Its totient is φ = 5963328.

The previous prime is 21030109. The next prime is 21030127. The reversal of 21030114 is 41103012.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21030114.

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, 68349 + ... + 68655.

It is an arithmetic number, because the mean of its divisors is an integer number (1027026).

Almost surely, 2^21030114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21030114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24648624).

21030114 is an abundant number, since it is smaller than the sum of its proper divisors (28267134).

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

21030114 is a wasteful number, since it uses less digits than its factorization.

21030114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 21030114 is about 4585.8602246471. The cubic root of 21030114 is about 276.0242312269.

Adding to 21030114 its reverse (41103012), we get a palindrome (62133126).

The spelling of 21030114 in words is "twenty-one million, thirty thousand, one hundred fourteen".