123444341132243 has 4 divisors (see below), whose sum is σ = 123650425174800. Its totient is φ = 123238257089688.

The previous prime is 123444341132197. The next prime is 123444341132249. The reversal of 123444341132243 is 342231143444321.

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 123444341132243 - 2⁸ = 123444341131987 is a prime.

It is a super-2 number, since 2×123444341132243² (a number of 29 digits) contains 22 as substring.

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 123444341132243.

It is not an unprimeable number, because it can be changed into a prime (123444341132249) 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, 103042020380 + ... + 103042021577.

It is an arithmetic number, because the mean of its divisors is an integer number (30912606293700).

Almost surely, 2^{123444341132243} is an apocalyptic number.

123444341132243 is a deficient number, since it is larger than the sum of its proper divisors (206084042557).

123444341132243 is an equidigital number, since it uses as much as digits as its factorization.

123444341132243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206084042556.

The product of its digits is 663552, while the sum is 41.

Adding to 123444341132243 its reverse (342231143444321), we get a palindrome (465675484576564).

The spelling of 123444341132243 in words is "one hundred twenty-three trillion, four hundred forty-four billion, three hundred forty-one million, one hundred thirty-two thousand, two hundred forty-three".