123420023203208 has 32 divisors (see below), whose sum is σ = 231552204732120. Its totient is φ = 61672777920000.

The previous prime is 123420023203177. The next prime is 123420023203229. The reversal of 123420023203208 is 802302320024321.

It can be written as a sum of positive squares in 4 ways, for example, as 120611308653124 + 2808714550084 = 10982318^2 + 1675922^2 .

It is a super-2 number, since 2×123420023203208² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106190348 + ... + 107346308.

Almost surely, 2^{123420023203208} is an apocalyptic number.

It is an amenable number.

123420023203208 is a deficient number, since it is larger than the sum of its proper divisors (108132181528912).

123420023203208 is a wasteful number, since it uses less digits than its factorization.

123420023203208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164009 (or 1164005 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 123420023203208 its reverse (802302320024321), we get a palindrome (925722343227529).

The spelling of 123420023203208 in words is "one hundred twenty-three trillion, four hundred twenty billion, twenty-three million, two hundred three thousand, two hundred eight".