20123200120000 has 140 divisors (see below), whose sum is σ = 50047098020920. Its totient is φ = 8025389568000.

The previous prime is 20123200119973. The next prime is 20123200120043. The reversal of 20123200120000 is 2100232102.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12733591 + ... + 14226409.

It is an arithmetic number, because the mean of its divisors is an integer number (357479271578).

Almost surely, 2^{20123200120000} is an apocalyptic number.

20123200120000 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 20123200120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25023549010460).

20123200120000 is an abundant number, since it is smaller than the sum of its proper divisors (29923897900920).

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

20123200120000 is an equidigital number, since it uses as much as digits as its factorization.

20123200120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493188 (or 1493163 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20123200120000 its reverse (2100232102), we get a palindrome (20125300352102).

The spelling of 20123200120000 in words is "twenty trillion, one hundred twenty-three billion, two hundred million, one hundred twenty thousand".