1163321252113 has 8 divisors (see below), whose sum is σ = 1231773421032. Its totient is φ = 1094871472896.

The previous prime is 1163321252089. The next prime is 1163321252129. The reversal of 1163321252113 is 3112521233611.

It can be written as a sum of positive squares in 4 ways, for example, as 171249475329 + 992071776784 = 413823^2 + 996028^2 .

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

It is not a de Polignac number, because 1163321252113 - 2⁹ = 1163321251601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163321252143) 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, 458131 + ... + 1592647.

It is an arithmetic number, because the mean of its divisors is an integer number (153971677629).

Almost surely, 2^{1163321252113} is an apocalyptic number.

It is an amenable number.

1163321252113 is a deficient number, since it is larger than the sum of its proper divisors (68452168919).

1163321252113 is a wasteful number, since it uses less digits than its factorization.

1163321252113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194851.

The product of its digits is 6480, while the sum is 31.

Adding to 1163321252113 its reverse (3112521233611), we get a palindrome (4275842485724).

The spelling of 1163321252113 in words is "one trillion, one hundred sixty-three billion, three hundred twenty-one million, two hundred fifty-two thousand, one hundred thirteen".