123135254133143 has 8 divisors (see below), whose sum is σ = 146844526668288. Its totient is φ = 100955612084184.

The previous prime is 123135254133049. The next prime is 123135254133187. The reversal of 123135254133143 is 341331452531321.

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 123135254133143 - 2²⁶ = 123135187024279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123135254133143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123135254133943) 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, 382407621371 + ... + 382407621692.

It is an arithmetic number, because the mean of its divisors is an integer number (18355565833536).

Almost surely, 2^{123135254133143} is an apocalyptic number.

123135254133143 is a deficient number, since it is larger than the sum of its proper divisors (23709272535145).

123135254133143 is an equidigital number, since it uses as much as digits as its factorization.

123135254133143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764815243093.

The product of its digits is 388800, while the sum is 41.

The spelling of 123135254133143 in words is "one hundred twenty-three trillion, one hundred thirty-five billion, two hundred fifty-four million, one hundred thirty-three thousand, one hundred forty-three".