123210324420 has 48 divisors (see below), whose sum is σ = 349145415360. Its totient is φ = 32460228736.

The previous prime is 123210324409. The next prime is 123210324451. The reversal of 123210324420 is 24423012321.

It is a happy number.

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, 12365535 + ... + 12375494.

It is an arithmetic number, because the mean of its divisors is an integer number (7273862820).

Almost surely, 2^123210324420 is an apocalyptic number.

123210324420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123210324420 is an abundant number, since it is smaller than the sum of its proper divisors (225935090940).

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

123210324420 is a wasteful number, since it uses less digits than its factorization.

123210324420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24741124 (or 24741122 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123210324420 its reverse (24423012321), we get a palindrome (147633336741).

The spelling of 123210324420 in words is "one hundred twenty-three billion, two hundred ten million, three hundred twenty-four thousand, four hundred twenty".