1111113457 has 4 divisors (see below), whose sum is σ = 1111199040. Its totient is φ = 1111027876.

The previous prime is 1111113401. The next prime is 1111113481. The reversal of 1111113457 is 7543111111.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1111113457 - 2¹¹ = 1111111409 is a prime.

It is a super-2 number, since 2×1111113457² = 2469146228652981698, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1111117457) 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, 18853 + ... + 50770.

It is an arithmetic number, because the mean of its divisors is an integer number (277799760).

Almost surely, 2^1111113457 is an apocalyptic number.

It is an amenable number.

1111113457 is a deficient number, since it is larger than the sum of its proper divisors (85583).

1111113457 is an equidigital number, since it uses as much as digits as its factorization.

1111113457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85582.

The product of its digits is 420, while the sum is 25.

The square root of 1111113457 is about 33333.3685216481. The cubic root of 1111113457 is about 1035.7448975730.

Adding to 1111113457 its reverse (7543111111), we get a palindrome (8654224568).

The spelling of 1111113457 in words is "one billion, one hundred eleven million, one hundred thirteen thousand, four hundred fifty-seven".