1021166113 has 8 divisors (see below), whose sum is σ = 1118337120. Its totient is φ = 924718080.

The previous prime is 1021166101. The next prime is 1021166117. The reversal of 1021166113 is 3116611201.

1021166113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1021166113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021166117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177783 + ... + 183436.

It is an arithmetic number, because the mean of its divisors is an integer number (139792140).

Almost surely, 2^1021166113 is an apocalyptic number.

It is an amenable number.

1021166113 is a deficient number, since it is larger than the sum of its proper divisors (97171007).

1021166113 is a wasteful number, since it uses less digits than its factorization.

1021166113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361487.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1021166113 is about 31955.6898376486. The cubic root of 1021166113 is about 1007.0061699467.

Adding to 1021166113 its reverse (3116611201), we get a palindrome (4137777314).

The spelling of 1021166113 in words is "one billion, twenty-one million, one hundred sixty-six thousand, one hundred thirteen".