123040203403027 has 2 divisors, whose sum is σ = 123040203403028. Its totient is φ = 123040203403026.

The previous prime is 123040203403009. The next prime is 123040203403067. The reversal of 123040203403027 is 720304302040321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123040203403027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123040203403027.

It is not a weakly prime, because it can be changed into another prime (123040203403067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61520101701513 + 61520101701514.

It is an arithmetic number, because the mean of its divisors is an integer number (61520101701514).

Almost surely, 2^{123040203403027} is an apocalyptic number.

123040203403027 is a deficient number, since it is larger than the sum of its proper divisors (1).

123040203403027 is an equidigital number, since it uses as much as digits as its factorization.

123040203403027 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 31.

Adding to 123040203403027 its reverse (720304302040321), we get a palindrome (843344505443348).

The spelling of 123040203403027 in words is "one hundred twenty-three trillion, forty billion, two hundred three million, four hundred three thousand, twenty-seven".