21420132001033 has 2 divisors, whose sum is σ = 21420132001034. Its totient is φ = 21420132001032.

The previous prime is 21420132000997. The next prime is 21420132001097. The reversal of 21420132001033 is 33010023102412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12022945977744 + 9397186023289 = 3467412^2 + 3065483^2 .

It is a cyclic number.

It is not a de Polignac number, because 21420132001033 - 2²⁵ = 21420098446601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21420132000995 and 21420132001013.

It is not a weakly prime, because it can be changed into another prime (21420132001733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10710066000516 + 10710066000517.

It is an arithmetic number, because the mean of its divisors is an integer number (10710066000517).

Almost surely, 2^{21420132001033} is an apocalyptic number.

It is an amenable number.

21420132001033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21420132001033 is an equidigital number, since it uses as much as digits as its factorization.

21420132001033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21420132001033 its reverse (33010023102412), we get a palindrome (54430155103445).

The spelling of 21420132001033 in words is "twenty-one trillion, four hundred twenty billion, one hundred thirty-two million, one thousand, thirty-three".