2123112151 has 2 divisors, whose sum is σ = 2123112152. Its totient is φ = 2123112150.

The previous prime is 2123112091. The next prime is 2123112157. The reversal of 2123112151 is 1512113212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123112151 - 2¹³ = 2123103959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123112157) 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, 1061556075 + 1061556076.

It is an arithmetic number, because the mean of its divisors is an integer number (1061556076).

Almost surely, 2^2123112151 is an apocalyptic number.

2123112151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123112151 is an equidigital number, since it uses as much as digits as its factorization.

2123112151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120, while the sum is 19.

The square root of 2123112151 is about 46077.2411392002. The cubic root of 2123112151 is about 1285.2599616368.

Adding to 2123112151 its reverse (1512113212), we get a palindrome (3635225363).

The spelling of 2123112151 in words is "two billion, one hundred twenty-three million, one hundred twelve thousand, one hundred fifty-one".