2012113111 has 2 divisors, whose sum is σ = 2012113112. Its totient is φ = 2012113110.

The previous prime is 2012113073. The next prime is 2012113133. The reversal of 2012113111 is 1113112102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012113111 - 2²⁵ = 1978558679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012113091 and 2012113100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012113151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006056555 + 1006056556.

It is an arithmetic number, because the mean of its divisors is an integer number (1006056556).

Almost surely, 2^2012113111 is an apocalyptic number.

2012113111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012113111 is an equidigital number, since it uses as much as digits as its factorization.

2012113111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2012113111 is about 44856.5838088457. The cubic root of 2012113111 is about 1262.4595258861.

Adding to 2012113111 its reverse (1113112102), we get a palindrome (3125225213).

The spelling of 2012113111 in words is "two billion, twelve million, one hundred thirteen thousand, one hundred eleven".