21414334133 has 2 divisors, whose sum is σ = 21414334134. Its totient is φ = 21414334132.

The previous prime is 21414334111. The next prime is 21414334231. The reversal of 21414334133 is 33143341412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14804318929 + 6610015204 = 121673^2 + 81302^2 .

It is a cyclic number.

It is not a de Polignac number, because 21414334133 - 2¹² = 21414330037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21414334096 and 21414334105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21414334103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10707167066 + 10707167067.

It is an arithmetic number, because the mean of its divisors is an integer number (10707167067).

Almost surely, 2^21414334133 is an apocalyptic number.

It is an amenable number.

21414334133 is a deficient number, since it is larger than the sum of its proper divisors (1).

21414334133 is an equidigital number, since it uses as much as digits as its factorization.

21414334133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

Adding to 21414334133 its reverse (33143341412), we get a palindrome (54557675545).

The spelling of 21414334133 in words is "twenty-one billion, four hundred fourteen million, three hundred thirty-four thousand, one hundred thirty-three".