21023133003203 has 2 divisors, whose sum is σ = 21023133003204. Its totient is φ = 21023133003202.

The previous prime is 21023133003109. The next prime is 21023133003217. The reversal of 21023133003203 is 30230033132012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21023133003203 - 2²⁴ = 21023116225987 is a prime.

It is not a weakly prime, because it can be changed into another prime (21023133003293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511566501601 + 10511566501602.

It is an arithmetic number, because the mean of its divisors is an integer number (10511566501602).

Almost surely, 2^{21023133003203} is an apocalyptic number.

21023133003203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023133003203 is an equidigital number, since it uses as much as digits as its factorization.

21023133003203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21023133003203 its reverse (30230033132012), we get a palindrome (51253166135215).

The spelling of 21023133003203 in words is "twenty-one trillion, twenty-three billion, one hundred thirty-three million, three thousand, two hundred three".