111302012100 has 144 divisors (see below), whose sum is σ = 324762200000. Its totient is φ = 29429637120.

The previous prime is 111302012069. The next prime is 111302012113. The reversal of 111302012100 is 1210203111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52082232 + ... + 52084368.

Almost surely, 2^111302012100 is an apocalyptic number.

111302012100 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 111302012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162381100000).

111302012100 is an abundant number, since it is smaller than the sum of its proper divisors (213460187900).

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

111302012100 is a wasteful number, since it uses less digits than its factorization.

111302012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542 (or 3535 counting only the distinct ones).

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

Adding to 111302012100 its reverse (1210203111), we get a palindrome (112512215211).

The spelling of 111302012100 in words is "one hundred eleven billion, three hundred two million, twelve thousand, one hundred".