123403144400244 has 72 divisors (see below), whose sum is σ = 330933777075720. Its totient is φ = 38638651533312.

The previous prime is 123403144400243. The next prime is 123403144400293. The reversal of 123403144400244 is 442004441304321.

123403144400244 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 0 + 3 + 1 + 4 + 4 + 400 + 244 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 46673217968400 + 76729926431844 = 6831780^2 + 8759562^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 123403144400199 and 123403144400208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123403144400243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197762289 + ... + 198385304.

It is an arithmetic number, because the mean of its divisors is an integer number (4596302459385).

Almost surely, 2^{123403144400244} is an apocalyptic number.

It is an amenable number.

123403144400244 is an abundant number, since it is smaller than the sum of its proper divisors (207530632675476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123403144400244 is a wasteful number, since it uses less digits than its factorization.

123403144400244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396148129 (or 396148124 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 123403144400244 its reverse (442004441304321), we get a palindrome (565407585704565).

The spelling of 123403144400244 in words is "one hundred twenty-three trillion, four hundred three billion, one hundred forty-four million, four hundred thousand, two hundred forty-four".