1118889023 has 16 divisors (see below), whose sum is σ = 1301535744. Its totient is φ = 941988960.

The previous prime is 1118889007. The next prime is 1118889029. The reversal of 1118889023 is 3209888111.

It is a cyclic number.

It is not a de Polignac number, because 1118889023 - 2⁴ = 1118889007 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 (1118889029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402986 + ... + 405752.

It is an arithmetic number, because the mean of its divisors is an integer number (81345984).

Almost surely, 2^1118889023 is an apocalyptic number.

1118889023 is a deficient number, since it is larger than the sum of its proper divisors (182646721).

1118889023 is an equidigital number, since it uses as much as digits as its factorization.

1118889023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 1118889023 is about 33449.7985494681. The cubic root of 1118889023 is about 1038.1553292991.

The spelling of 1118889023 in words is "one billion, one hundred eighteen million, eight hundred eighty-nine thousand, twenty-three".