123320403355043 has 2 divisors, whose sum is σ = 123320403355044. Its totient is φ = 123320403355042.

The previous prime is 123320403355001. The next prime is 123320403355081. The reversal of 123320403355043 is 340553304023321.

It is an a-pointer prime, because the next prime (123320403355081) can be obtained adding 123320403355043 to its sum of digits (38).

It is a strong prime.

It is an emirp because it is prime and its reverse (340553304023321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123320403355043 - 2³⁶ = 123251683878307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123320403354988 and 123320403355006.

It is not a weakly prime, because it can be changed into another prime (123320403355243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660201677521 + 61660201677522.

It is an arithmetic number, because the mean of its divisors is an integer number (61660201677522).

Almost surely, 2^{123320403355043} is an apocalyptic number.

123320403355043 is a deficient number, since it is larger than the sum of its proper divisors (1).

123320403355043 is an equidigital number, since it uses as much as digits as its factorization.

123320403355043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 38.

Adding to 123320403355043 its reverse (340553304023321), we get a palindrome (463873707378364).

The spelling of 123320403355043 in words is "one hundred twenty-three trillion, three hundred twenty billion, four hundred three million, three hundred fifty-five thousand, forty-three".