1131114321 has 16 divisors (see below), whose sum is σ = 1676243520. Its totient is φ = 753842880.

The previous prime is 1131114253. The next prime is 1131114331. The reversal of 1131114321 is 1234111311.

It is a happy number.

It is not a de Polignac number, because 1131114321 - 2¹³ = 1131106129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131114294 and 1131114303.

It is not an unprimeable number, because it can be changed into a prime (1131114331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162121 + ... + 168953.

It is an arithmetic number, because the mean of its divisors is an integer number (104765220).

Almost surely, 2^1131114321 is an apocalyptic number.

It is an amenable number.

1131114321 is a deficient number, since it is larger than the sum of its proper divisors (545129199).

1131114321 is an equidigital number, since it uses as much as digits as its factorization.

1131114321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12973 (or 12967 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1131114321 is about 33632.0430690733. The cubic root of 1131114321 is about 1041.9227009191.

Adding to 1131114321 its reverse (1234111311), we get a palindrome (2365225632).

The spelling of 1131114321 in words is "one billion, one hundred thirty-one million, one hundred fourteen thousand, three hundred twenty-one".