1111782923 has 4 divisors (see below), whose sum is σ = 1117603968. Its totient is φ = 1105961880.

The previous prime is 1111782913. The next prime is 1111782941. The reversal of 1111782923 is 3292871111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3292871111 = 5741 ⋅573571.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111782923 is a prime.

It is a super-2 number, since 2×1111782923² = 2472122535748847858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111782913) 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, 2910236 + ... + 2910617.

It is an arithmetic number, because the mean of its divisors is an integer number (279400992).

Almost surely, 2^1111782923 is an apocalyptic number.

1111782923 is a deficient number, since it is larger than the sum of its proper divisors (5821045).

1111782923 is an equidigital number, since it uses as much as digits as its factorization.

1111782923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5821044.

The product of its digits is 6048, while the sum is 35.

The square root of 1111782923 is about 33343.4089888841. The cubic root of 1111782923 is about 1035.9528741676.

The spelling of 1111782923 in words is "one billion, one hundred eleven million, seven hundred eighty-two thousand, nine hundred twenty-three".