1111052399 has 4 divisors (see below), whose sum is σ = 1138151280. Its totient is φ = 1083953520.

The previous prime is 1111052389. The next prime is 1111052401. The reversal of 1111052399 is 9932501111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9932501111 = 13 ⋅764038547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111052399 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 (1111052389) 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, 13549379 + ... + 13549460.

It is an arithmetic number, because the mean of its divisors is an integer number (284537820).

Almost surely, 2^1111052399 is an apocalyptic number.

1111052399 is a deficient number, since it is larger than the sum of its proper divisors (27098881).

1111052399 is an equidigital number, since it uses as much as digits as its factorization.

1111052399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27098880.

The product of its (nonzero) digits is 2430, while the sum is 32.

The square root of 1111052399 is about 33332.4526400324. The cubic root of 1111052399 is about 1035.7259251119.

The spelling of 1111052399 in words is "one billion, one hundred eleven million, fifty-two thousand, three hundred ninety-nine".