33105121243 has 2 divisors, whose sum is σ = 33105121244. Its totient is φ = 33105121242.

The previous prime is 33105121213. The next prime is 33105121319. The reversal of 33105121243 is 34212150133.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33105121243 - 2⁵ = 33105121211 is a prime.

It is not a weakly prime, because it can be changed into another prime (33105121213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16552560621 + 16552560622.

It is an arithmetic number, because the mean of its divisors is an integer number (16552560622).

Almost surely, 2^33105121243 is an apocalyptic number.

33105121243 is a deficient number, since it is larger than the sum of its proper divisors (1).

33105121243 is an equidigital number, since it uses as much as digits as its factorization.

33105121243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 33105121243 its reverse (34212150133), we get a palindrome (67317271376).

The spelling of 33105121243 in words is "thirty-three billion, one hundred five million, one hundred twenty-one thousand, two hundred forty-three".