13330121533 has 2 divisors, whose sum is σ = 13330121534. Its totient is φ = 13330121532.

The previous prime is 13330121503. The next prime is 13330121573. The reversal of 13330121533 is 33512103331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12872717764 + 457403769 = 113458^2 + 21387^2 .

It is a cyclic number.

It is not a de Polignac number, because 13330121533 - 2¹⁷ = 13329990461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13330121498 and 13330121507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13330121503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665060766 + 6665060767.

It is an arithmetic number, because the mean of its divisors is an integer number (6665060767).

Almost surely, 2^13330121533 is an apocalyptic number.

It is an amenable number.

13330121533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13330121533 is an equidigital number, since it uses as much as digits as its factorization.

13330121533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 25.

Adding to 13330121533 its reverse (33512103331), we get a palindrome (46842224864).

The spelling of 13330121533 in words is "thirteen billion, three hundred thirty million, one hundred twenty-one thousand, five hundred thirty-three".