1000113091 has 2 divisors, whose sum is σ = 1000113092. Its totient is φ = 1000113090.

The previous prime is 1000113083. The next prime is 1000113113. The reversal of 1000113091 is 1903110001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000113091 - 2³ = 1000113083 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000113031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500056545 + 500056546.

It is an arithmetic number, because the mean of its divisors is an integer number (500056546).

Almost surely, 2^1000113091 is an apocalyptic number.

1000113091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000113091 is an equidigital number, since it uses as much as digits as its factorization.

1000113091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 1000113091 is about 31624.5646768458. The cubic root of 1000113091 is about 1000.0376955790.

Adding to 1000113091 its reverse (1903110001), we get a palindrome (2903223092).

The spelling of 1000113091 in words is "one billion, one hundred thirteen thousand, ninety-one".