12455011022123 has 2 divisors, whose sum is σ = 12455011022124. Its totient is φ = 12455011022122.

The previous prime is 12455011022063. The next prime is 12455011022159. The reversal of 12455011022123 is 32122011055421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12455011022123 - 2¹⁰ = 12455011021099 is a prime.

It is a super-2 number, since 2×12455011022123² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12455011022023) 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, 6227505511061 + 6227505511062.

It is an arithmetic number, because the mean of its divisors is an integer number (6227505511062).

Almost surely, 2^{12455011022123} is an apocalyptic number.

12455011022123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12455011022123 is an equidigital number, since it uses as much as digits as its factorization.

12455011022123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 12455011022123 its reverse (32122011055421), we get a palindrome (44577022077544).

The spelling of 12455011022123 in words is "twelve trillion, four hundred fifty-five billion, eleven million, twenty-two thousand, one hundred twenty-three".