2106311023 has 2 divisors, whose sum is σ = 2106311024. Its totient is φ = 2106311022.

The previous prime is 2106310967. The next prime is 2106311041. The reversal of 2106311023 is 3201136012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2106311023 - 2⁹ = 2106310511 is a prime.

It is a super-2 number, since 2×2106311023² = 8873092251222613058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2106311083) 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 as a sum of consecutive naturals, namely, 1053155511 + 1053155512.

It is an arithmetic number, because the mean of its divisors is an integer number (1053155512).

Almost surely, 2^2106311023 is an apocalyptic number.

2106311023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106311023 is an equidigital number, since it uses as much as digits as its factorization.

2106311023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2106311023 is about 45894.5641988242. The cubic root of 2106311023 is about 1281.8607018364.

Adding to 2106311023 its reverse (3201136012), we get a palindrome (5307447035).

The spelling of 2106311023 in words is "two billion, one hundred six million, three hundred eleven thousand, twenty-three".