111002010120 has 64 divisors (see below), whose sum is σ = 370006704000. Its totient is φ = 29600535744.

The previous prime is 111002010089. The next prime is 111002010131. The reversal of 111002010120 is 21010200111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51388740 + ... + 51390899.

It is an arithmetic number, because the mean of its divisors is an integer number (5781354750).

Almost surely, 2^111002010120 is an apocalyptic number.

111002010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111002010120 is an abundant number, since it is smaller than the sum of its proper divisors (259004693880).

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

111002010120 is a wasteful number, since it uses less digits than its factorization.

111002010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102779659 (or 102779649 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111002010120 its reverse (21010200111), we get a palindrome (132012210231).

The spelling of 111002010120 in words is "one hundred eleven billion, two million, ten thousand, one hundred twenty".