1011111163 has 4 divisors (see below), whose sum is σ = 1064327560. Its totient is φ = 957894768.

The previous prime is 1011111149. The next prime is 1011111197. The reversal of 1011111163 is 3611111101.

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 1011111163 - 2¹³ = 1011102971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011111133) 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, 26608170 + ... + 26608207.

It is an arithmetic number, because the mean of its divisors is an integer number (266081890).

Almost surely, 2^1011111163 is an apocalyptic number.

1011111163 is a deficient number, since it is larger than the sum of its proper divisors (53216397).

1011111163 is an equidigital number, since it uses as much as digits as its factorization.

1011111163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53216396.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 1011111163 is about 31797.9741964799. The cubic root of 1011111163 is about 1003.6900875052.

Adding to 1011111163 its reverse (3611111101), we get a palindrome (4622222264).

The spelling of 1011111163 in words is "one billion, eleven million, one hundred eleven thousand, one hundred sixty-three".