123203123320 has 32 divisors (see below), whose sum is σ = 277266693600. Its totient is φ = 49270642048.

The previous prime is 123203123297. The next prime is 123203123339. The reversal of 123203123320 is 23321302321.

It is a junction number, because it is equal to n+sod(n) for n = 123203123291 and 123203123300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141979 + ... + 516298.

It is an arithmetic number, because the mean of its divisors is an integer number (8664584175).

Almost surely, 2^123203123320 is an apocalyptic number.

123203123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123203123320 is an abundant number, since it is smaller than the sum of its proper divisors (154063570280).

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

123203123320 is a wasteful number, since it uses less digits than its factorization.

123203123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662967 (or 662963 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123203123320 its reverse (23321302321), we get a palindrome (146524425641).

The spelling of 123203123320 in words is "one hundred twenty-three billion, two hundred three million, one hundred twenty-three thousand, three hundred twenty".