2123123371 has 2 divisors, whose sum is σ = 2123123372. Its totient is φ = 2123123370.

The previous prime is 2123123369. The next prime is 2123123393. The reversal of 2123123371 is 1733213212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123123371 - 2¹ = 2123123369 is a prime.

Together with 2123123369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2123123311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061561685 + 1061561686.

It is an arithmetic number, because the mean of its divisors is an integer number (1061561686).

Almost surely, 2^2123123371 is an apocalyptic number.

2123123371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123123371 is an equidigital number, since it uses as much as digits as its factorization.

2123123371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 25.

The square root of 2123123371 is about 46077.3628911204. The cubic root of 2123123371 is about 1285.2622257018.

Adding to 2123123371 its reverse (1733213212), we get a palindrome (3856336583).

The spelling of 2123123371 in words is "two billion, one hundred twenty-three million, one hundred twenty-three thousand, three hundred seventy-one".