123102211200 has 96 divisors (see below), whose sum is σ = 405467939760. Its totient is φ = 32827253760.

The previous prime is 123102211159. The next prime is 123102211207. The reversal of 123102211200 is 2112201321.

It is a tau number, because it is divible by the number of its divisors (96).

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 123102211200.

It is not an unprimeable number, because it can be changed into a prime (123102211207) by changing a digit.

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, 6401974 + ... + 6421173.

Almost surely, 2^123102211200 is an apocalyptic number.

123102211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123102211200 is an abundant number, since it is smaller than the sum of its proper divisors (282365728560).

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

123102211200 is a wasteful number, since it uses less digits than its factorization.

123102211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12823174 (or 12823157 counting only the distinct ones).

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

Adding to 123102211200 its reverse (2112201321), we get a palindrome (125214412521).

The spelling of 123102211200 in words is "one hundred twenty-three billion, one hundred two million, two hundred eleven thousand, two hundred".