111201400 has 24 divisors (see below), whose sum is σ = 258543720. Its totient is φ = 44480480.

The previous prime is 111201361. The next prime is 111201401. The reversal of 111201400 is 4102111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277804 + ... + 278203.

It is an arithmetic number, because the mean of its divisors is an integer number (10772655).

Almost surely, 2^111201400 is an apocalyptic number.

111201400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201400 is an abundant number, since it is smaller than the sum of its proper divisors (147342320).

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

111201400 is a wasteful number, since it uses less digits than its factorization.

111201400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556023 (or 556014 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 111201400 is about 10545.2074422460. The cubic root of 111201400 is about 480.8800406242.

Adding to 111201400 its reverse (4102111), we get a palindrome (115303511).

The spelling of 111201400 in words is "one hundred eleven million, two hundred one thousand, four hundred".