2111200133 has 6 divisors (see below), whose sum is σ = 2455885926. Its totient is φ = 1809600072.

The previous prime is 2111200129. The next prime is 2111200159. The reversal of 2111200133 is 3310021112.

It can be written as a sum of positive squares in only one way, i.e., 1329550369 + 781649764 = 36463^2 + 27958^2 .

It is not a de Polignac number, because 2111200133 - 2² = 2111200129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111200033) 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 5 ways as a sum of consecutive naturals, for example, 21542810 + ... + 21542907.

It is an arithmetic number, because the mean of its divisors is an integer number (409314321).

Almost surely, 2^2111200133 is an apocalyptic number.

It is an amenable number.

2111200133 is a deficient number, since it is larger than the sum of its proper divisors (344685793).

2111200133 is an equidigital number, since it uses as much as digits as its factorization.

2111200133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43085731 (or 43085724 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2111200133 is about 45947.7979124136. The cubic root of 2111200133 is about 1282.8517417953.

Adding to 2111200133 its reverse (3310021112), we get a palindrome (5421221245).

The spelling of 2111200133 in words is "two billion, one hundred eleven million, two hundred thousand, one hundred thirty-three".