111012313100 has 144 divisors (see below), whose sum is σ = 265929750240. Its totient is φ = 39965184000.

The previous prime is 111012313081. The next prime is 111012313103. The reversal of 111012313100 is 1313210111.

It is a happy number.

It is a super-2 number, since 2×111012313100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111012313103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39631700 + ... + 39634500.

Almost surely, 2^111012313100 is an apocalyptic number.

111012313100 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 111012313100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132964875120).

111012313100 is an abundant number, since it is smaller than the sum of its proper divisors (154917437140).

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

111012313100 is a wasteful number, since it uses less digits than its factorization.

111012313100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580 (or 3573 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 111012313100 its reverse (1313210111), we get a palindrome (112325523211).

The spelling of 111012313100 in words is "one hundred eleven billion, twelve million, three hundred thirteen thousand, one hundred".