21132333432433 has 2 divisors, whose sum is σ = 21132333432434. Its totient is φ = 21132333432432.

The previous prime is 21132333432407. The next prime is 21132333432443. The reversal of 21132333432433 is 33423433323112.

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., 16149652307569 + 4982681124864 = 4018663^2 + 2232192^2 .

It is a cyclic number.

It is not a de Polignac number, because 21132333432433 - 2⁹ = 21132333431921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21132333432392 and 21132333432401.

It is not a weakly prime, because it can be changed into another prime (21132333432443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566166716216 + 10566166716217.

It is an arithmetic number, because the mean of its divisors is an integer number (10566166716217).

Almost surely, 2^{21132333432433} is an apocalyptic number.

It is an amenable number.

21132333432433 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132333432433 is an equidigital number, since it uses as much as digits as its factorization.

21132333432433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 37.

Adding to 21132333432433 its reverse (33423433323112), we get a palindrome (54555766755545).

The spelling of 21132333432433 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred thirty-three million, four hundred thirty-two thousand, four hundred thirty-three".