1000057111 has 4 divisors (see below), whose sum is σ = 1000635912. Its totient is φ = 999478312.

The previous prime is 1000057109. The next prime is 1000057171. The reversal of 1000057111 is 1117500001.

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 1000057111 - 2¹ = 1000057109 is a prime.

It is a super-2 number, since 2×1000057111² = 2000228450523332642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000057171) 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, 286801 + ... + 290266.

It is an arithmetic number, because the mean of its divisors is an integer number (250158978).

Almost surely, 2^1000057111 is an apocalyptic number.

1000057111 is a deficient number, since it is larger than the sum of its proper divisors (578801).

1000057111 is an equidigital number, since it uses as much as digits as its factorization.

1000057111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578800.

The product of its (nonzero) digits is 35, while the sum is 16.

The square root of 1000057111 is about 31623.6795929885. The cubic root of 1000057111 is about 1000.0190366376.

Adding to 1000057111 its reverse (1117500001), we get a palindrome (2117557112).

The spelling of 1000057111 in words is "one billion, fifty-seven thousand, one hundred eleven".