123432204220 has 48 divisors (see below), whose sum is σ = 279613051200. Its totient is φ = 45498825216.

The previous prime is 123432204193. The next prime is 123432204223. The reversal of 123432204220 is 22402234321.

It is a super-3 number, since 3×123432204220³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123432204223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 240537 + ... + 552016.

It is an arithmetic number, because the mean of its divisors is an integer number (5825271900).

Almost surely, 2^123432204220 is an apocalyptic number.

123432204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123432204220 is an abundant number, since it is smaller than the sum of its proper divisors (156180846980).

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

123432204220 is a wasteful number, since it uses less digits than its factorization.

123432204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793174 (or 793172 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 123432204220 its reverse (22402234321), we get a palindrome (145834438541).

The spelling of 123432204220 in words is "one hundred twenty-three billion, four hundred thirty-two million, two hundred four thousand, two hundred twenty".