123411434123 has 16 divisors (see below), whose sum is σ = 126469486080. Its totient is φ = 120392764800.

The previous prime is 123411434099. The next prime is 123411434137. The reversal of 123411434123 is 321434114321.

It is a cyclic number.

It is not a de Polignac number, because 123411434123 - 2⁸ = 123411433867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123411434423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6683738 + ... + 6702176.

It is an arithmetic number, because the mean of its divisors is an integer number (7904342880).

Almost surely, 2^123411434123 is an apocalyptic number.

123411434123 is a deficient number, since it is larger than the sum of its proper divisors (3058051957).

123411434123 is a wasteful number, since it uses less digits than its factorization.

123411434123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19498.

The product of its digits is 6912, while the sum is 29.

Adding to 123411434123 its reverse (321434114321), we get a palindrome (444845548444).

The spelling of 123411434123 in words is "one hundred twenty-three billion, four hundred eleven million, four hundred thirty-four thousand, one hundred twenty-three".