2011129 has 2 divisors, whose sum is σ = 2011130. Its totient is φ = 2011128.

The previous prime is 2011127. The next prime is 2011147. The reversal of 2011129 is 9211102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1488400 + 522729 = 1220^2 + 723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011129 - 2¹ = 2011127 is a prime.

Together with 2011127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2011123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005564 + 1005565.

It is an arithmetic number, because the mean of its divisors is an integer number (1005565).

2^2011129 is an apocalyptic number.

It is an amenable number.

2011129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011129 is an equidigital number, since it uses as much as digits as its factorization.

2011129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 2011129 is about 1418.1427995798. The cubic root of 2011129 is about 126.2253672165.

The spelling of 2011129 in words is "two million, eleven thousand, one hundred twenty-nine".