1000111061 has 2 divisors, whose sum is σ = 1000111062. Its totient is φ = 1000111060.

The previous prime is 1000111051. The next prime is 1000111103. The reversal of 1000111061 is 1601110001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682202161 + 317908900 = 26119^2 + 17830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000111061 - 2⁶ = 1000110997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000111051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055530 + 500055531.

It is an arithmetic number, because the mean of its divisors is an integer number (500055531).

Almost surely, 2^1000111061 is an apocalyptic number.

It is an amenable number.

1000111061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000111061 is an equidigital number, since it uses as much as digits as its factorization.

1000111061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1000111061 is about 31624.5325815260. The cubic root of 1000111061 is about 1000.0370189629.

Adding to 1000111061 its reverse (1601110001), we get a palindrome (2601221062).

The spelling of 1000111061 in words is "one billion, one hundred eleven thousand, sixty-one".