111481418837 has 4 divisors (see below), whose sum is σ = 111502825740. Its totient is φ = 111460011936.

The previous prime is 111481418827. The next prime is 111481418849. The reversal of 111481418837 is 738814184111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110090576401 + 1390842436 = 331799^2 + 37294^2 .

It is a cyclic number.

It is not a de Polignac number, because 111481418837 - 2⁶ = 111481418773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111481418791 and 111481418800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111481418827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10695638 + ... + 10706055.

It is an arithmetic number, because the mean of its divisors is an integer number (27875706435).

Almost surely, 2^111481418837 is an apocalyptic number.

It is an amenable number.

111481418837 is a deficient number, since it is larger than the sum of its proper divisors (21406903).

111481418837 is an equidigital number, since it uses as much as digits as its factorization.

111481418837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21406902.

The product of its digits is 172032, while the sum is 47.

The spelling of 111481418837 in words is "one hundred eleven billion, four hundred eighty-one million, four hundred eighteen thousand, eight hundred thirty-seven".