1013042081 has 4 divisors (see below), whose sum is σ = 1022509872. Its totient is φ = 1003574292.

The previous prime is 1013042071. The next prime is 1013042113. The reversal of 1013042081 is 1802403101.

1013042081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013042081 is a prime.

It is a super-2 number, since 2×1013042081² = 2052508515753621122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1013042011) 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, 4733735 + ... + 4733948.

It is an arithmetic number, because the mean of its divisors is an integer number (255627468).

Almost surely, 2^1013042081 is an apocalyptic number.

It is an amenable number.

1013042081 is a deficient number, since it is larger than the sum of its proper divisors (9467791).

1013042081 is an equidigital number, since it uses as much as digits as its factorization.

1013042081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9467790.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1013042081 is about 31828.3219947266. The cubic root of 1013042081 is about 1004.3285965506.

Adding to 1013042081 its reverse (1802403101), we get a palindrome (2815445182).

The spelling of 1013042081 in words is "one billion, thirteen million, forty-two thousand, eighty-one".