111043042400 has 72 divisors (see below), whose sum is σ = 271170393984. Its totient is φ = 44403033600.

The previous prime is 111043042361. The next prime is 111043042427. The reversal of 111043042400 is 4240340111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2692334 + ... + 2733266.

It is an arithmetic number, because the mean of its divisors is an integer number (3766255472).

Almost surely, 2^111043042400 is an apocalyptic number.

111043042400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111043042400 is an abundant number, since it is smaller than the sum of its proper divisors (160127351584).

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

111043042400 is a wasteful number, since it uses less digits than its factorization.

111043042400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44344 (or 44331 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 111043042400 its reverse (4240340111), we get a palindrome (115283382511).

The spelling of 111043042400 in words is "one hundred eleven billion, forty-three million, forty-two thousand, four hundred".