111020200100120 has 64 divisors (see below), whose sum is σ = 250025683482720. Its totient is φ = 44367153905664.

The previous prime is 111020200100057. The next prime is 111020200100129. The reversal of 111020200100120 is 21001002020111.

It is a super-3 number, since 3×111020200100120³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020200100129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021826519 + ... + 1021935161.

Almost surely, 2^{111020200100120} is an apocalyptic number.

111020200100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111020200100120 is an abundant number, since it is smaller than the sum of its proper divisors (139005483382600).

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

111020200100120 is a wasteful number, since it uses less digits than its factorization.

111020200100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131964 (or 131960 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111020200100120 its reverse (21001002020111), we get a palindrome (132021202120231).

The spelling of 111020200100120 in words is "one hundred eleven trillion, twenty billion, two hundred million, one hundred thousand, one hundred twenty".