123423514121 has 8 divisors (see below), whose sum is σ = 130686950304. Its totient is φ = 116160436800.

The previous prime is 123423514061. The next prime is 123423514129. The reversal of 123423514121 is 121415324321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123423514121 - 2⁶ = 123423514057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123423514129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989186 + ... + 1106948.

It is an arithmetic number, because the mean of its divisors is an integer number (16335868788).

Almost surely, 2^123423514121 is an apocalyptic number.

It is an amenable number.

123423514121 is a deficient number, since it is larger than the sum of its proper divisors (7263436183).

123423514121 is a wasteful number, since it uses less digits than its factorization.

123423514121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179431.

The product of its digits is 5760, while the sum is 29.

Adding to 123423514121 its reverse (121415324321), we get a palindrome (244838838442).

The spelling of 123423514121 in words is "one hundred twenty-three billion, four hundred twenty-three million, five hundred fourteen thousand, one hundred twenty-one".