111440223000421 has 8 divisors (see below), whose sum is σ = 134063426166080. Its totient is φ = 90492812661888.

The previous prime is 111440223000367. The next prime is 111440223000461. The reversal of 111440223000421 is 124000322044111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111440223000421 - 2³³ = 111431633065829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111440223000461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418948206636 + ... + 418948206901.

It is an arithmetic number, because the mean of its divisors is an integer number (16757928270760).

Almost surely, 2^{111440223000421} is an apocalyptic number.

It is an amenable number.

111440223000421 is a deficient number, since it is larger than the sum of its proper divisors (22623203165659).

111440223000421 is an equidigital number, since it uses as much as digits as its factorization.

111440223000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837896413563.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 111440223000421 its reverse (124000322044111), we get a palindrome (235440545044532).

The spelling of 111440223000421 in words is "one hundred eleven trillion, four hundred forty billion, two hundred twenty-three million, four hundred twenty-one", and thus it is an aban number.