123044220204440 has 64 divisors (see below), whose sum is σ = 277419568788000. Its totient is φ = 49116445757440.

The previous prime is 123044220204419. The next prime is 123044220204463. The reversal of 123044220204440 is 44402022440321.

It is a junction number, because it is equal to n+sod(n) for n = 123044220204397 and 123044220204406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36241310 + ... + 39490770.

Almost surely, 2^{123044220204440} is an apocalyptic number.

123044220204440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123044220204440 is an abundant number, since it is smaller than the sum of its proper divisors (154375348583560).

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

123044220204440 is a wasteful number, since it uses less digits than its factorization.

123044220204440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251420 (or 3251416 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 123044220204440 its reverse (44402022440321), we get a palindrome (167446242644761).

The spelling of 123044220204440 in words is "one hundred twenty-three trillion, forty-four billion, two hundred twenty million, two hundred four thousand, four hundred forty".