111012020111904 has 192 divisors, whose sum is σ = 310247420313600. Its totient is φ = 34635659857920.

The previous prime is 111012020111903. The next prime is 111012020112029. The reversal of 111012020111904 is 409111020210111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (111012020111903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685504287 + ... + 685666209.

It is an arithmetic number, because the mean of its divisors is an integer number (1615871980800).

Almost surely, 2^{111012020111904} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111012020111904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155123710156800).

111012020111904 is an abundant number, since it is smaller than the sum of its proper divisors (199235400201696).

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

111012020111904 is a wasteful number, since it uses less digits than its factorization.

111012020111904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164263 (or 164255 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 111012020111904 in words is "one hundred eleven trillion, twelve billion, twenty million, one hundred eleven thousand, nine hundred four".