123142104200 has 48 divisors (see below), whose sum is σ = 286329330000. Its totient is φ = 49252723520.

The previous prime is 123142104193. The next prime is 123142104221. The reversal of 123142104200 is 2401241321.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 11 ways as a sum of consecutive naturals, for example, 3763511 + ... + 3796089.

It is an arithmetic number, because the mean of its divisors is an integer number (5965194375).

Almost surely, 2^123142104200 is an apocalyptic number.

123142104200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123142104200 is an abundant number, since it is smaller than the sum of its proper divisors (163187225800).

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

123142104200 is a wasteful number, since it uses less digits than its factorization.

123142104200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51494 (or 51485 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123142104200 its reverse (2401241321), we get a palindrome (125543345521).

The spelling of 123142104200 in words is "one hundred twenty-three billion, one hundred forty-two million, one hundred four thousand, two hundred".