2123424427 has 2 divisors, whose sum is σ = 2123424428. Its totient is φ = 2123424426.

The previous prime is 2123424403. The next prime is 2123424431. The reversal of 2123424427 is 7244243212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123424427 - 2²⁷ = 1989206699 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123424497) 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, 1061712213 + 1061712214.

It is an arithmetic number, because the mean of its divisors is an integer number (1061712214).

Almost surely, 2^2123424427 is an apocalyptic number.

2123424427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123424427 is an equidigital number, since it uses as much as digits as its factorization.

2123424427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 31.

The square root of 2123424427 is about 46080.6296289450. The cubic root of 2123424427 is about 1285.3229723078.

Adding to 2123424427 its reverse (7244243212), we get a palindrome (9367667639).

The spelling of 2123424427 in words is "two billion, one hundred twenty-three million, four hundred twenty-four thousand, four hundred twenty-seven".