111313287447 has 4 divisors (see below), whose sum is σ = 148417716600. Its totient is φ = 74208858296.

The previous prime is 111313287413. The next prime is 111313287469. The reversal of 111313287447 is 744782313111.

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

It is a cyclic number.

It is not a de Polignac number, because 111313287447 - 2²⁰ = 111312238871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111313287399 and 111313287408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111313280447) 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, 18552214572 + ... + 18552214577.

It is an arithmetic number, because the mean of its divisors is an integer number (37104429150).

Almost surely, 2^111313287447 is an apocalyptic number.

111313287447 is a deficient number, since it is larger than the sum of its proper divisors (37104429153).

111313287447 is an equidigital number, since it uses as much as digits as its factorization.

111313287447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37104429152.

The product of its digits is 112896, while the sum is 42.

The spelling of 111313287447 in words is "one hundred eleven billion, three hundred thirteen million, two hundred eighty-seven thousand, four hundred forty-seven".