123102101450123 has 4 divisors (see below), whose sum is σ = 124788431607048. Its totient is φ = 121415771293200.

The previous prime is 123102101450113. The next prime is 123102101450137. The reversal of 123102101450123 is 321054101201321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123102101450123 - 2¹⁸ = 123102101187979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123102101450092 and 123102101450101.

It is not an unprimeable number, because it can be changed into a prime (123102101450113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843165078353 + ... + 843165078498.

It is an arithmetic number, because the mean of its divisors is an integer number (31197107901762).

Almost surely, 2^{123102101450123} is an apocalyptic number.

123102101450123 is a deficient number, since it is larger than the sum of its proper divisors (1686330156925).

123102101450123 is an equidigital number, since it uses as much as digits as its factorization.

123102101450123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686330156924.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 123102101450123 its reverse (321054101201321), we get a palindrome (444156202651444).

The spelling of 123102101450123 in words is "one hundred twenty-three trillion, one hundred two billion, one hundred one million, four hundred fifty thousand, one hundred twenty-three".