2011321232011 has 16 divisors (see below), whose sum is σ = 2481836011200. Its totient is φ = 1587284074368.

The previous prime is 2011321231987. The next prime is 2011321232017. The reversal of 2011321232011 is 1102321231102.

It is a cyclic number.

It is not a de Polignac number, because 2011321232011 - 2⁷ = 2011321231883 is a prime.

It is a super-2 number, since 2×2011321232011² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011321232011.

It is not an unprimeable number, because it can be changed into a prime (2011321232017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28373896 + ... + 28444693.

It is an arithmetic number, because the mean of its divisors is an integer number (155114750700).

Almost surely, 2^{2011321232011} is an apocalyptic number.

2011321232011 is a deficient number, since it is larger than the sum of its proper divisors (470514779189).

2011321232011 is a wasteful number, since it uses less digits than its factorization.

2011321232011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56818998.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2011321232011 its reverse (1102321231102), we get a palindrome (3113642463113).

Subtracting from 2011321232011 its reverse (1102321231102), we obtain a palindrome (909000000909).

The spelling of 2011321232011 in words is "two trillion, eleven billion, three hundred twenty-one million, two hundred thirty-two thousand, eleven".