123403423010208 has 192 divisors, whose sum is σ = 360346266169344. Its totient is φ = 36665262720000.

The previous prime is 123403423010137. The next prime is 123403423010233. The reversal of 123403423010208 is 802010324304321.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5368953 + ... + 16602183.

It is an arithmetic number, because the mean of its divisors is an integer number (1876803469632).

Almost surely, 2^{123403423010208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123403423010208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180173133084672).

123403423010208 is an abundant number, since it is smaller than the sum of its proper divisors (236942843159136).

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

123403423010208 is a wasteful number, since it uses less digits than its factorization.

123403423010208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11233459 (or 11233451 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 123403423010208 its reverse (802010324304321), we get a palindrome (925413747314529).

It can be divided in two parts, 1234034 and 23010208, that added together give a palindrome (24244242).

The spelling of 123403423010208 in words is "one hundred twenty-three trillion, four hundred three billion, four hundred twenty-three million, ten thousand, two hundred eight".