1111381717 has 4 divisors (see below), whose sum is σ = 1125449920. Its totient is φ = 1097313516.

The previous prime is 1111381709. The next prime is 1111381723. The reversal of 1111381717 is 7171831111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7171831111 = 1433 ⋅5004767.

It is a cyclic number.

It is not a de Polignac number, because 1111381717 - 2³ = 1111381709 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 (1111381727) 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, 7033983 + ... + 7034140.

It is an arithmetic number, because the mean of its divisors is an integer number (281362480).

Almost surely, 2^1111381717 is an apocalyptic number.

It is an amenable number.

1111381717 is a deficient number, since it is larger than the sum of its proper divisors (14068203).

1111381717 is an equidigital number, since it uses as much as digits as its factorization.

1111381717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14068202.

The product of its digits is 1176, while the sum is 31.

The square root of 1111381717 is about 33337.3921745538. The cubic root of 1111381717 is about 1035.8282453676.

The spelling of 1111381717 in words is "one billion, one hundred eleven million, three hundred eighty-one thousand, seven hundred seventeen".