111020100240 has 320 divisors, whose sum is σ = 412583878656. Its totient is φ = 24145330176.

The previous prime is 111020100203. The next prime is 111020100241. The reversal of 111020100240 is 42001020111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (111020100241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7450077 + ... + 7464963.

Almost surely, 2^111020100240 is an apocalyptic number.

111020100240 is a gapful number since it is divisible by the number (10) 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 111020100240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206291939328).

111020100240 is an abundant number, since it is smaller than the sum of its proper divisors (301563778416).

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

111020100240 is a wasteful number, since it uses less digits than its factorization.

111020100240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15126 (or 15120 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111020100240 its reverse (42001020111), we get a palindrome (153021120351).

The spelling of 111020100240 in words is "one hundred eleven billion, twenty million, one hundred thousand, two hundred forty".