33013231302011 has 4 divisors (see below), whose sum is σ = 33015175446624. Its totient is φ = 33011287157400.

The previous prime is 33013231301989. The next prime is 33013231302019. The reversal of 33013231302011 is 11020313231033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33013231302011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33013231302019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972046835 + ... + 972080796.

It is an arithmetic number, because the mean of its divisors is an integer number (8253793861656).

Almost surely, 2^{33013231302011} is an apocalyptic number.

33013231302011 is a deficient number, since it is larger than the sum of its proper divisors (1944144613).

33013231302011 is a wasteful number, since it uses less digits than its factorization.

33013231302011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944144612.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 33013231302011 its reverse (11020313231033), we get a palindrome (44033544533044).

The spelling of 33013231302011 in words is "thirty-three trillion, thirteen billion, two hundred thirty-one million, three hundred two thousand, eleven".