20003221032030 has 144 divisors (see below), whose sum is σ = 53174860487424. Its totient is φ = 5217124621440.

The previous prime is 20003221032029. The next prime is 20003221032061. The reversal of 20003221032030 is 3023012230002.

It is a happy number.

20003221032030 is a `hidden beast` number, since 20 + 0 + 0 + 322 + 1 + 0 + 320 + 3 + 0 = 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 = 20003221031994 and 20003221032012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 296789635 + ... + 296857025.

It is an arithmetic number, because the mean of its divisors is an integer number (369269864496).

Almost surely, 2^{20003221032030} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003221032030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26587430243712).

20003221032030 is an abundant number, since it is smaller than the sum of its proper divisors (33171639455394).

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

20003221032030 is a wasteful number, since it uses less digits than its factorization.

20003221032030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68991 (or 68941 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20003221032030 its reverse (3023012230002), we get a palindrome (23026233262032).

The spelling of 20003221032030 in words is "twenty trillion, three billion, two hundred twenty-one million, thirty-two thousand, thirty".