123013320144420 has 48 divisors (see below), whose sum is σ = 344717099451648. Its totient is φ = 32776904129280.

The previous prime is 123013320144419. The next prime is 123013320144437. The reversal of 123013320144420 is 24441023310321.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 832672689 + ... + 832820408.

It is an arithmetic number, because the mean of its divisors is an integer number (7181606238576).

Almost surely, 2^{123013320144420} is an apocalyptic number.

123013320144420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123013320144420 is an abundant number, since it is smaller than the sum of its proper divisors (221703779307228).

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

123013320144420 is a wasteful number, since it uses less digits than its factorization.

123013320144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665494340 (or 1665494338 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 123013320144420 its reverse (24441023310321), we get a palindrome (147454343454741).

The spelling of 123013320144420 in words is "one hundred twenty-three trillion, thirteen billion, three hundred twenty million, one hundred forty-four thousand, four hundred twenty".