1163113321 has 16 divisors (see below), whose sum is σ = 1208623680. Its totient is φ = 1118557440.

The previous prime is 1163113319. The next prime is 1163113333. The reversal of 1163113321 is 1233113611.

It is a cyclic number.

It is not a de Polignac number, because 1163113321 - 2¹ = 1163113319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1163113292 and 1163113301.

It is not an unprimeable number, because it can be changed into a prime (1163113621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197366 + ... + 1198336.

It is an arithmetic number, because the mean of its divisors is an integer number (75538980).

Almost surely, 2^1163113321 is an apocalyptic number.

It is an amenable number.

1163113321 is a deficient number, since it is larger than the sum of its proper divisors (45510359).

1163113321 is an equidigital number, since it uses as much as digits as its factorization.

1163113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416.

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

The square root of 1163113321 is about 34104.4472319960. The cubic root of 1163113321 is about 1051.6567408506.

Adding to 1163113321 its reverse (1233113611), we get a palindrome (2396226932).

The spelling of 1163113321 in words is "one billion, one hundred sixty-three million, one hundred thirteen thousand, three hundred twenty-one".