20030220012321 has 12 divisors (see below), whose sum is σ = 28932670842660. Its totient is φ = 13353419627520.

The previous prime is 20030220012311. The next prime is 20030220012331. The reversal of 20030220012321 is 12321002203002.

20030220012321 is a `hidden beast` number, since 20 + 0 + 302 + 20 + 0 + 1 + 2 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (20030220012311) and next prime (20030220012331).

It can be written as a sum of positive squares in 2 ways, for example, as 8397099950625 + 11633120061696 = 2897775^2 + 3410736^2 .

It is not a de Polignac number, because 20030220012321 - 2¹⁷ = 20030219881249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20030220012294 and 20030220012303.

It is not an unprimeable number, because it can be changed into a prime (20030220012311) 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 11 ways as a sum of consecutive naturals, for example, 2882436 + ... + 6954773.

It is an arithmetic number, because the mean of its divisors is an integer number (2411055903555).

Almost surely, 2^{20030220012321} is an apocalyptic number.

It is an amenable number.

20030220012321 is a deficient number, since it is larger than the sum of its proper divisors (8902450830339).

20030220012321 is a wasteful number, since it uses less digits than its factorization.

20030220012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063456 (or 10063453 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20030220012321 its reverse (12321002203002), we get a palindrome (32351222215323).

The spelling of 20030220012321 in words is "twenty trillion, thirty billion, two hundred twenty million, twelve thousand, three hundred twenty-one".