2123041120457 has 2 divisors, whose sum is σ = 2123041120458. Its totient is φ = 2123041120456.

The previous prime is 2123041120393. The next prime is 2123041120483. The reversal of 2123041120457 is 7540211403212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119510008761 + 1003531111696 = 1058069^2 + 1001764^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123041120457 - 2⁶ = 2123041120393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123041120657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061520560228 + 1061520560229.

It is an arithmetic number, because the mean of its divisors is an integer number (1061520560229).

Almost surely, 2^{2123041120457} is an apocalyptic number.

It is an amenable number.

2123041120457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123041120457 is an equidigital number, since it uses as much as digits as its factorization.

2123041120457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 2123041120457 its reverse (7540211403212), we get a palindrome (9663252523669).

The spelling of 2123041120457 in words is "two trillion, one hundred twenty-three billion, forty-one million, one hundred twenty thousand, four hundred fifty-seven".