20123100301200 has 480 divisors, whose sum is σ = 72813352813824. Its totient is φ = 4713448734720.

The previous prime is 20123100301133. The next prime is 20123100301243. The reversal of 20123100301200 is 210300132102.

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 20123100301200.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69103104 + ... + 69393696.

Almost surely, 2^{20123100301200} is an apocalyptic number.

20123100301200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20123100301200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36406676406912).

20123100301200 is an abundant number, since it is smaller than the sum of its proper divisors (52690252512624).

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

20123100301200 is a wasteful number, since it uses less digits than its factorization.

20123100301200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290843 (or 290832 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20123100301200 its reverse (210300132102), we get a palindrome (20333400433302).

The spelling of 20123100301200 in words is "twenty trillion, one hundred twenty-three billion, one hundred million, three hundred one thousand, two hundred".