123343233131123 has 4 divisors (see below), whose sum is σ = 123360136418280. Its totient is φ = 123326329843968.

The previous prime is 123343233131089. The next prime is 123343233131137. The reversal of 123343233131123 is 321131332343321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123343233131123 is a prime.

It is a super-2 number, since 2×123343233131123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123343233130123) 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, 8451632633 + ... + 8451647226.

It is an arithmetic number, because the mean of its divisors is an integer number (30840034104570).

Almost surely, 2^{123343233131123} is an apocalyptic number.

123343233131123 is a deficient number, since it is larger than the sum of its proper divisors (16903287157).

123343233131123 is an equidigital number, since it uses as much as digits as its factorization.

123343233131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16903287156.

The product of its digits is 69984, while the sum is 35.

Adding to 123343233131123 its reverse (321131332343321), we get a palindrome (444474565474444).

The spelling of 123343233131123 in words is "one hundred twenty-three trillion, three hundred forty-three billion, two hundred thirty-three million, one hundred thirty-one thousand, one hundred twenty-three".