1063310081 has 4 divisors (see below), whose sum is σ = 1063376832. Its totient is φ = 1063243332.

The previous prime is 1063310077. The next prime is 1063310159. The reversal of 1063310081 is 1800133601.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1063310081 - 2² = 1063310077 is a prime.

It is a super-2 number, since 2×1063310081² = 2261256656712453122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1063310011) 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, 6020 + ... + 46506.

It is an arithmetic number, because the mean of its divisors is an integer number (265844208).

Almost surely, 2^1063310081 is an apocalyptic number.

It is an amenable number.

1063310081 is a deficient number, since it is larger than the sum of its proper divisors (66751).

1063310081 is an equidigital number, since it uses as much as digits as its factorization.

1063310081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66750.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1063310081 is about 32608.4357337177. The cubic root of 1063310081 is about 1020.6730406782.

Adding to 1063310081 its reverse (1800133601), we get a palindrome (2863443682).

The spelling of 1063310081 in words is "one billion, sixty-three million, three hundred ten thousand, eighty-one".