1118499311 has 4 divisors (see below), whose sum is σ = 1145779824. Its totient is φ = 1091218800.

The previous prime is 1118499299. The next prime is 1118499341. The reversal of 1118499311 is 1139948111.

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 1118499311 - 2¹⁸ = 1118237167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118499341) 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, 13640195 + ... + 13640276.

It is an arithmetic number, because the mean of its divisors is an integer number (286444956).

Almost surely, 2^1118499311 is an apocalyptic number.

1118499311 is a deficient number, since it is larger than the sum of its proper divisors (27280513).

1118499311 is an equidigital number, since it uses as much as digits as its factorization.

1118499311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27280512.

The product of its digits is 7776, while the sum is 38.

The square root of 1118499311 is about 33443.9727155731. The cubic root of 1118499311 is about 1038.0347845556.

The spelling of 1118499311 in words is "one billion, one hundred eighteen million, four hundred ninety-nine thousand, three hundred eleven".