123020101200 has 120 divisors (see below), whose sum is σ = 404725196128. Its totient is φ = 31918717440.

The previous prime is 123020101181. The next prime is 123020101273. The reversal of 123020101200 is 2101020321.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1340962 + ... + 1429761.

Almost surely, 2^123020101200 is an apocalyptic number.

123020101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123020101200 is an abundant number, since it is smaller than the sum of its proper divisors (281705094928).

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

123020101200 is a wasteful number, since it uses less digits than its factorization.

123020101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770781 (or 2770770 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 123020101200 its reverse (2101020321), we get a palindrome (125121121521).

The spelling of 123020101200 in words is "one hundred twenty-three billion, twenty million, one hundred one thousand, two hundred".