1131220331113 has 8 divisors (see below), whose sum is σ = 1185139838720. Its totient is φ = 1078390106640.

The previous prime is 1131220331099. The next prime is 1131220331141. The reversal of 1131220331113 is 3111330221311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131220331113 - 2⁵ = 1131220331081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131220331713) 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, 272318658 + ... + 272322811.

It is an arithmetic number, because the mean of its divisors is an integer number (148142479840).

Almost surely, 2^{1131220331113} is an apocalyptic number.

It is an amenable number.

1131220331113 is a deficient number, since it is larger than the sum of its proper divisors (53919507607).

1131220331113 is an equidigital number, since it uses as much as digits as its factorization.

1131220331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544641567.

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

Adding to 1131220331113 its reverse (3111330221311), we get a palindrome (4242550552424).

The spelling of 1131220331113 in words is "one trillion, one hundred thirty-one billion, two hundred twenty million, three hundred thirty-one thousand, one hundred thirteen".