1013043091 has 4 divisors (see below), whose sum is σ = 1040422672. Its totient is φ = 985663512.

The previous prime is 1013043089. The next prime is 1013043133. The reversal of 1013043091 is 1903403101.

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 1013043091 - 2¹ = 1013043089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013043011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13689735 + ... + 13689808.

It is an arithmetic number, because the mean of its divisors is an integer number (260105668).

Almost surely, 2^1013043091 is an apocalyptic number.

1013043091 is a deficient number, since it is larger than the sum of its proper divisors (27379581).

1013043091 is an equidigital number, since it uses as much as digits as its factorization.

1013043091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27379580.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1013043091 is about 31828.3378610948. The cubic root of 1013043091 is about 1004.3289303214.

Adding to 1013043091 its reverse (1903403101), we get a palindrome (2916446192).

The spelling of 1013043091 in words is "one billion, thirteen million, forty-three thousand, ninety-one".