1111448999 has 4 divisors (see below), whose sum is σ = 1123937280. Its totient is φ = 1098960720.

The previous prime is 1111448959. The next prime is 1111449007. The reversal of 1111448999 is 9998441111.

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 1111448999 - 2²⁸ = 843013543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111448929) 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, 6244007 + ... + 6244184.

It is an arithmetic number, because the mean of its divisors is an integer number (280984320).

Almost surely, 2^1111448999 is an apocalyptic number.

1111448999 is a deficient number, since it is larger than the sum of its proper divisors (12488281).

1111448999 is an equidigital number, since it uses as much as digits as its factorization.

1111448999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12488280.

The product of its digits is 93312, while the sum is 47.

The square root of 1111448999 is about 33338.4012664075. The cubic root of 1111448999 is about 1035.8491476338.

The spelling of 1111448999 in words is "one billion, one hundred eleven million, four hundred forty-eight thousand, nine hundred ninety-nine".