21020332002203 has 2 divisors, whose sum is σ = 21020332002204. Its totient is φ = 21020332002202.

The previous prime is 21020332002199. The next prime is 21020332002259. The reversal of 21020332002203 is 30220023302012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21020332002203 - 2² = 21020332002199 is a prime.

It is not a weakly prime, because it can be changed into another prime (21020332092203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510166001101 + 10510166001102.

It is an arithmetic number, because the mean of its divisors is an integer number (10510166001102).

Almost surely, 2^{21020332002203} is an apocalyptic number.

21020332002203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020332002203 is an equidigital number, since it uses as much as digits as its factorization.

21020332002203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21020332002203 its reverse (30220023302012), we get a palindrome (51240355304215).

The spelling of 21020332002203 in words is "twenty-one trillion, twenty billion, three hundred thirty-two million, two thousand, two hundred three".