2123030221387 has 2 divisors, whose sum is σ = 2123030221388. Its totient is φ = 2123030221386.

The previous prime is 2123030221363. The next prime is 2123030221399. The reversal of 2123030221387 is 7831220303212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123030221387 - 2¹¹ = 2123030219339 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123030921387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061515110693 + 1061515110694.

It is an arithmetic number, because the mean of its divisors is an integer number (1061515110694).

Almost surely, 2^{2123030221387} is an apocalyptic number.

2123030221387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123030221387 is an equidigital number, since it uses as much as digits as its factorization.

2123030221387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

Adding to 2123030221387 its reverse (7831220303212), we get a palindrome (9954250524599).

The spelling of 2123030221387 in words is "two trillion, one hundred twenty-three billion, thirty million, two hundred twenty-one thousand, three hundred eighty-seven".