1130221113231 has 64 divisors (see below), whose sum is σ = 1844731929600. Its totient is φ = 601124198400.

The previous prime is 1130221113071. The next prime is 1130221113257. The reversal of 1130221113231 is 1323111220311.

It is not a de Polignac number, because 1130221113231 - 2¹¹ = 1130221111183 is a prime.

It is a super-2 number, since 2×1130221113231² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1130221113198 and 1130221113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130221113271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21416305 + ... + 21469013.

It is an arithmetic number, because the mean of its divisors is an integer number (28823936400).

Almost surely, 2^{1130221113231} is an apocalyptic number.

1130221113231 is a deficient number, since it is larger than the sum of its proper divisors (714510816369).

1130221113231 is a wasteful number, since it uses less digits than its factorization.

1130221113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53680.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1130221113231 its reverse (1323111220311), we get a palindrome (2453332333542).

The spelling of 1130221113231 in words is "one trillion, one hundred thirty billion, two hundred twenty-one million, one hundred thirteen thousand, two hundred thirty-one".