20120321202003 has 48 divisors (see below), whose sum is σ = 32573895244800. Its totient is φ = 11860095090240.

The previous prime is 20120321201993. The next prime is 20120321202061. The reversal of 20120321202003 is 30020212302102.

20120321202003 is a `hidden beast` number, since 2 + 0 + 120 + 321 + 20 + 200 + 3 = 666.

It is not a de Polignac number, because 20120321202003 - 2⁴ = 20120321201987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120321202083) 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 47 ways as a sum of consecutive naturals, for example, 8707038 + ... + 10772796.

It is an arithmetic number, because the mean of its divisors is an integer number (678622817600).

Almost surely, 2^{20120321202003} is an apocalyptic number.

20120321202003 is a deficient number, since it is larger than the sum of its proper divisors (12453574042797).

20120321202003 is a wasteful number, since it uses less digits than its factorization.

20120321202003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068472 (or 2068469 counting only the distinct ones).

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

Adding to 20120321202003 its reverse (30020212302102), we get a palindrome (50140533504105).

It can be divided in two parts, 20120 and 321202003, that added together give a palindrome (321222123).

The spelling of 20120321202003 in words is "twenty trillion, one hundred twenty billion, three hundred twenty-one million, two hundred two thousand, three".