2011213103111 has 4 divisors (see below), whose sum is σ = 2012453828424. Its totient is φ = 2009972377800.

The previous prime is 2011213103083. The next prime is 2011213103117. The reversal of 2011213103111 is 1113013121102.

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-2011213103111 is a prime.

It is a super-2 number, since 2×2011213103111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011213103111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011213103117) 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, 620360225 + ... + 620363466.

It is an arithmetic number, because the mean of its divisors is an integer number (503113457106).

Almost surely, 2^{2011213103111} is an apocalyptic number.

2011213103111 is a deficient number, since it is larger than the sum of its proper divisors (1240725313).

2011213103111 is a wasteful number, since it uses less digits than its factorization.

2011213103111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240725312.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 2011213103111 its reverse (1113013121102), we get a palindrome (3124226224213).

The spelling of 2011213103111 in words is "two trillion, eleven billion, two hundred thirteen million, one hundred three thousand, one hundred eleven".