20123331201200 has 120 divisors (see below), whose sum is σ = 50893499363520. Its totient is φ = 7625285740800.

The previous prime is 20123331201191. The next prime is 20123331201203. The reversal of 20123331201200 is 210213332102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20123331201203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174826067 + ... + 174941133.

It is an arithmetic number, because the mean of its divisors is an integer number (424112494696).

Almost surely, 2^{20123331201200} is an apocalyptic number.

20123331201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123331201200 is an abundant number, since it is smaller than the sum of its proper divisors (30770168162320).

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

20123331201200 is a wasteful number, since it uses less digits than its factorization.

20123331201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138115 (or 138104 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20123331201200 its reverse (210213332102), we get a palindrome (20333544533302).

The spelling of 20123331201200 in words is "twenty trillion, one hundred twenty-three billion, three hundred thirty-one million, two hundred one thousand, two hundred".