21403322132033 has 2 divisors, whose sum is σ = 21403322132034. Its totient is φ = 21403322132032.

The previous prime is 21403322131943. The next prime is 21403322132063. The reversal of 21403322132033 is 33023122330412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20042382904384 + 1360939227649 = 4476872^2 + 1166593^2 .

It is a cyclic number.

It is not a de Polignac number, because 21403322132033 - 2²⁰ = 21403321083457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21403322131987 and 21403322132005.

It is not a weakly prime, because it can be changed into another prime (21403322132063) 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, 10701661066016 + 10701661066017.

It is an arithmetic number, because the mean of its divisors is an integer number (10701661066017).

Almost surely, 2^{21403322132033} is an apocalyptic number.

It is an amenable number.

21403322132033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21403322132033 is an equidigital number, since it uses as much as digits as its factorization.

21403322132033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21403322132033 its reverse (33023122330412), we get a palindrome (54426444462445).

The spelling of 21403322132033 in words is "twenty-one trillion, four hundred three billion, three hundred twenty-two million, one hundred thirty-two thousand, thirty-three".