13405215233 has 2 divisors, whose sum is σ = 13405215234. Its totient is φ = 13405215232.

The previous prime is 13405215221. The next prime is 13405215253. The reversal of 13405215233 is 33251250431.

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., 10838475664 + 2566739569 = 104108^2 + 50663^2 .

It is a cyclic number.

It is not a de Polignac number, because 13405215233 - 2¹⁰ = 13405214209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13405215196 and 13405215205.

It is not a weakly prime, because it can be changed into another prime (13405215253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702607616 + 6702607617.

It is an arithmetic number, because the mean of its divisors is an integer number (6702607617).

Almost surely, 2^13405215233 is an apocalyptic number.

It is an amenable number.

13405215233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405215233 is an equidigital number, since it uses as much as digits as its factorization.

13405215233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 13405215233 its reverse (33251250431), we get a palindrome (46656465664).

The spelling of 13405215233 in words is "thirteen billion, four hundred five million, two hundred fifteen thousand, two hundred thirty-three".