2125311 has 4 divisors (see below), whose sum is σ = 2833752. Its totient is φ = 1416872.

The previous prime is 2125273. The next prime is 2125313. The reversal of 2125311 is 1135212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2125311 - 2¹¹ = 2123263 is a prime.

It is a D-number.

2125311 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125313) 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, 354216 + ... + 354221.

It is an arithmetic number, because the mean of its divisors is an integer number (708438).

2^2125311 is an apocalyptic number.

2125311 is a deficient number, since it is larger than the sum of its proper divisors (708441).

2125311 is an equidigital number, since it uses as much as digits as its factorization.

2125311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708440.

The product of its digits is 60, while the sum is 15.

The square root of 2125311 is about 1457.8446419286. The cubic root of 2125311 is about 128.5703511374.

Subtracting from 2125311 its reverse (1135212), we obtain a palindrome (990099).

The spelling of 2125311 in words is "two million, one hundred twenty-five thousand, three hundred eleven".