1111942257147 has 20 divisors (see below), whose sum is σ = 1661978240560. Its totient is φ = 740880378864.

The previous prime is 1111942257113. The next prime is 1111942257161. The reversal of 1111942257147 is 7417522491111.

1111942257147 is a `hidden beast` number, since 1 + 1 + 1 + 19 + 4 + 22 + 571 + 47 = 666.

It is not a de Polignac number, because 1111942257147 - 2¹⁰ = 1111942256123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111942257847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3691783 + ... + 3981600.

It is an arithmetic number, because the mean of its divisors is an integer number (83098912028).

Almost surely, 2^{1111942257147} is an apocalyptic number.

1111942257147 is a deficient number, since it is larger than the sum of its proper divisors (550035983413).

1111942257147 is an equidigital number, since it uses as much as digits as its factorization.

1111942257147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675184 (or 7675175 counting only the distinct ones).

The product of its digits is 141120, while the sum is 45.

The spelling of 1111942257147 in words is "one trillion, one hundred eleven billion, nine hundred forty-two million, two hundred fifty-seven thousand, one hundred forty-seven".