123120202200 has 48 divisors (see below), whose sum is σ = 381672628680. Its totient is φ = 32832053760.

The previous prime is 123120202171. The next prime is 123120202277. The reversal of 123120202200 is 2202021321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 123120202200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102599569 + ... + 102600768.

Almost surely, 2^123120202200 is an apocalyptic number.

123120202200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123120202200 is an abundant number, since it is smaller than the sum of its proper divisors (258552426480).

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

123120202200 is a wasteful number, since it uses less digits than its factorization.

123120202200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205200356 (or 205200347 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 123120202200 its reverse (2202021321), we get a palindrome (125322223521).

The spelling of 123120202200 in words is "one hundred twenty-three billion, one hundred twenty million, two hundred two thousand, two hundred".