123433854159349 has 8 divisors (see below), whose sum is σ = 124578569083320. Its totient is φ = 122289362767296.

The previous prime is 123433854159311. The next prime is 123433854159389. The reversal of 123433854159349 is 943951458334321.

It can be written as a sum of positive squares in 4 ways, for example, as 57669701719249 + 65764152440100 = 7594057^2 + 8109510^2 .

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 123433854159349 - 2¹⁵ = 123433854126581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123433854159389) 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, 54773362 + ... + 56982355.

It is an arithmetic number, because the mean of its divisors is an integer number (15572321135415).

Almost surely, 2^{123433854159349} is an apocalyptic number.

It is an amenable number.

123433854159349 is a deficient number, since it is larger than the sum of its proper divisors (1144714923971).

123433854159349 is a wasteful number, since it uses less digits than its factorization.

123433854159349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111765959.

The product of its digits is 167961600, while the sum is 64.

The spelling of 123433854159349 in words is "one hundred twenty-three trillion, four hundred thirty-three billion, eight hundred fifty-four million, one hundred fifty-nine thousand, three hundred forty-nine".