111543127643 has 4 divisors (see below), whose sum is σ = 113371703568. Its totient is φ = 109714551720.

The previous prime is 111543127639. The next prime is 111543127691. The reversal of 111543127643 is 346721345111.

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 111543127643 - 2² = 111543127639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111543127597 and 111543127606.

It is not an unprimeable number, because it can be changed into a prime (111543127693) 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, 914287871 + ... + 914287992.

It is an arithmetic number, because the mean of its divisors is an integer number (28342925892).

Almost surely, 2^111543127643 is an apocalyptic number.

111543127643 is a deficient number, since it is larger than the sum of its proper divisors (1828575925).

111543127643 is an equidigital number, since it uses as much as digits as its factorization.

111543127643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828575924.

The product of its digits is 60480, while the sum is 38.

The spelling of 111543127643 in words is "one hundred eleven billion, five hundred forty-three million, one hundred twenty-seven thousand, six hundred forty-three".