21200303001030 has 256 divisors, whose sum is σ = 54679315680000. Its totient is φ = 5250108358656.

The previous prime is 21200303000927. The next prime is 21200303001037. The reversal of 21200303001030 is 3010030300212.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200303001037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1575404062 + ... + 1575417518.

It is an arithmetic number, because the mean of its divisors is an integer number (213591076875).

Almost surely, 2^{21200303001030} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21200303001030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27339657840000).

21200303001030 is an abundant number, since it is smaller than the sum of its proper divisors (33479012678970).

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

21200303001030 is a wasteful number, since it uses less digits than its factorization.

21200303001030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14091.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21200303001030 its reverse (3010030300212), we get a palindrome (24210333301242).

The spelling of 21200303001030 in words is "twenty-one trillion, two hundred billion, three hundred three million, one thousand, thirty".