123122302121123 has 2 divisors, whose sum is σ = 123122302121124. Its totient is φ = 123122302121122.

The previous prime is 123122302121081. The next prime is 123122302121141. The reversal of 123122302121123 is 321121203221321.

It is a strong prime.

It is an emirp because it is prime and its reverse (321121203221321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123122302121123 is a prime.

It is a super-2 number, since 2×123122302121123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123122302121092 and 123122302121101.

It is not a weakly prime, because it can be changed into another prime (123122302121323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561151060561 + 61561151060562.

It is an arithmetic number, because the mean of its divisors is an integer number (61561151060562).

Almost surely, 2^{123122302121123} is an apocalyptic number.

123122302121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122302121123 is an equidigital number, since it uses as much as digits as its factorization.

123122302121123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123122302121123 its reverse (321121203221321), we get a palindrome (444243505342444).

The spelling of 123122302121123 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, three hundred two million, one hundred twenty-one thousand, one hundred twenty-three".