33011213320231 has 6 divisors (see below), whose sum is σ = 33469616362920. Its totient is φ = 32559004913328.

The previous prime is 33011213320177. The next prime is 33011213320243. The reversal of 33011213320231 is 13202331211033.

It is not a de Polignac number, because 33011213320231 - 2¹⁵ = 33011213287463 is a prime.

It is a super-2 number, since 2×33011213320231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33011213320196 and 33011213320205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33011213320331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3097312491 + ... + 3097323148.

It is an arithmetic number, because the mean of its divisors is an integer number (5578269393820).

Almost surely, 2^{33011213320231} is an apocalyptic number.

33011213320231 is a deficient number, since it is larger than the sum of its proper divisors (458403042689).

33011213320231 is an frugal number, since it uses more digits than its factorization.

33011213320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194635785 (or 6194635712 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 33011213320231 its reverse (13202331211033), we get a palindrome (46213544531264).

The spelling of 33011213320231 in words is "thirty-three trillion, eleven billion, two hundred thirteen million, three hundred twenty thousand, two hundred thirty-one".