2011112111237 has 2 divisors, whose sum is σ = 2011112111238. Its totient is φ = 2011112111236.

The previous prime is 2011112111179. The next prime is 2011112111243. The reversal of 2011112111237 is 7321112111102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1065950937601 + 945161173636 = 1032449^2 + 972194^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011112111237 - 2²² = 2011107916933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011112111287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005556055618 + 1005556055619.

It is an arithmetic number, because the mean of its divisors is an integer number (1005556055619).

Almost surely, 2^{2011112111237} is an apocalyptic number.

It is an amenable number.

2011112111237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011112111237 is an equidigital number, since it uses as much as digits as its factorization.

2011112111237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 23.

Adding to 2011112111237 its reverse (7321112111102), we get a palindrome (9332224222339).

The spelling of 2011112111237 in words is "two trillion, eleven billion, one hundred twelve million, one hundred eleven thousand, two hundred thirty-seven".