123204132100 has 72 divisors (see below), whose sum is σ = 305785164608. Its totient is φ = 42208387200.

The previous prime is 123204132089. The next prime is 123204132167. The reversal of 123204132100 is 1231402321.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 835534 + ... + 971866.

Almost surely, 2^123204132100 is an apocalyptic number.

123204132100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123204132100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152892582304).

123204132100 is an abundant number, since it is smaller than the sum of its proper divisors (182581032508).

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

123204132100 is a wasteful number, since it uses less digits than its factorization.

123204132100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137645 (or 137638 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123204132100 its reverse (1231402321), we get a palindrome (124435534421).

The spelling of 123204132100 in words is "one hundred twenty-three billion, two hundred four million, one hundred thirty-two thousand, one hundred".