2011303212011 has 4 divisors (see below), whose sum is σ = 2011313615472. Its totient is φ = 2011292808552.

The previous prime is 2011303211993. The next prime is 2011303212047. The reversal of 2011303212011 is 1102123031102.

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-2011303212011 is a prime.

It is a super-2 number, since 2×2011303212011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011303211011) 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, 4906136 + ... + 5300261.

It is an arithmetic number, because the mean of its divisors is an integer number (502828403868).

Almost surely, 2^{2011303212011} is an apocalyptic number.

2011303212011 is a deficient number, since it is larger than the sum of its proper divisors (10403461).

2011303212011 is a wasteful number, since it uses less digits than its factorization.

2011303212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10403460.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2011303212011 its reverse (1102123031102), we get a palindrome (3113426243113).

The spelling of 2011303212011 in words is "two trillion, eleven billion, three hundred three million, two hundred twelve thousand, eleven".