2128031 has 2 divisors, whose sum is σ = 2128032. Its totient is φ = 2128030.

The previous prime is 2128001. The next prime is 2128039. The reversal of 2128031 is 1308212.

2128031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2128031 - 2⁶ = 2127967 is a prime.

It is a super-2 number, since 2×2128031² = 9057031873922, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 6.

It is a zygodrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064015 + 1064016.

It is an arithmetic number, because the mean of its divisors is an integer number (1064016).

2^2128031 is an apocalyptic number.

2128031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128031 is an equidigital number, since it uses as much as digits as its factorization.

2128031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2128031 is about 1458.7772276808. Note that the first 3 decimals coincide. The cubic root of 2128031 is about 128.6251764112.

The spelling of 2128031 in words is "two million, one hundred twenty-eight thousand, thirty-one".