201111312400120 has 32 divisors (see below), whose sum is σ = 452604166438320. Its totient is φ = 80426086997760.

The previous prime is 201111312400001. The next prime is 201111312400127. The reversal of 201111312400120 is 21004213111102.

201111312400120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111312400127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576009621 + ... + 576358660.

Almost surely, 2^{201111312400120} is an apocalyptic number.

201111312400120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201111312400120 is an abundant number, since it is smaller than the sum of its proper divisors (251492854038200).

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

201111312400120 is a wasteful number, since it uses less digits than its factorization.

201111312400120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152372655 (or 1152372651 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201111312400120 its reverse (21004213111102), we get a palindrome (222115525511222).

The spelling of 201111312400120 in words is "two hundred one trillion, one hundred eleven billion, three hundred twelve million, four hundred thousand, one hundred twenty".