1118855803 has 4 divisors (see below), whose sum is σ = 1204921648. Its totient is φ = 1032789960.

The previous prime is 1118855783. The next prime is 1118855807. The reversal of 1118855803 is 3085588111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3085588111 = 17 ⋅181505183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118855803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118855807) 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, 43032903 + ... + 43032928.

It is an arithmetic number, because the mean of its divisors is an integer number (301230412).

Almost surely, 2^1118855803 is an apocalyptic number.

1118855803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1118855803 is a deficient number, since it is larger than the sum of its proper divisors (86065845).

1118855803 is an equidigital number, since it uses as much as digits as its factorization.

1118855803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86065844.

The product of its (nonzero) digits is 38400, while the sum is 40.

The square root of 1118855803 is about 33449.3019807589. The cubic root of 1118855803 is about 1038.1450548630.

The spelling of 1118855803 in words is "one billion, one hundred eighteen million, eight hundred fifty-five thousand, eight hundred three".