23311033221011 has 32 divisors (see below), whose sum is σ = 25092552038400. Its totient is φ = 21606477984000.

The previous prime is 23311033221001. The next prime is 23311033221013. The reversal of 23311033221011 is 11012233011332.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23311033221011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23311033221013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313110551 + ... + 313184991.

It is an arithmetic number, because the mean of its divisors is an integer number (784142251200).

Almost surely, 2^{23311033221011} is an apocalyptic number.

23311033221011 is a deficient number, since it is larger than the sum of its proper divisors (1781518817389).

23311033221011 is a wasteful number, since it uses less digits than its factorization.

23311033221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77291.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 23311033221011 its reverse (11012233011332), we get a palindrome (34323266232343).

The spelling of 23311033221011 in words is "twenty-three trillion, three hundred eleven billion, thirty-three million, two hundred twenty-one thousand, eleven".