123122011200 has 84 divisors (see below), whose sum is σ = 403942814160. Its totient is φ = 32832535040.

The previous prime is 123122011163. The next prime is 123122011231. The reversal of 123122011200 is 2110221321.

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 123122011200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12820410 + ... + 12830009.

Almost surely, 2^123122011200 is an apocalyptic number.

123122011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123122011200 is an abundant number, since it is smaller than the sum of its proper divisors (280820802960).

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

123122011200 is a wasteful number, since it uses less digits than its factorization.

123122011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650444 (or 25650429 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 123122011200 its reverse (2110221321), we get a palindrome (125232232521).

The spelling of 123122011200 in words is "one hundred twenty-three billion, one hundred twenty-two million, eleven thousand, two hundred".