1113110321 has 2 divisors, whose sum is σ = 1113110322. Its totient is φ = 1113110320.

The previous prime is 1113110303. The next prime is 1113110333. The reversal of 1113110321 is 1230113111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1103568400 + 9541921 = 33220^2 + 3089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113110321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1113110296 and 1113110305.

It is not a weakly prime, because it can be changed into another prime (1113110021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556555160 + 556555161.

It is an arithmetic number, because the mean of its divisors is an integer number (556555161).

Almost surely, 2^1113110321 is an apocalyptic number.

It is an amenable number.

1113110321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113110321 is an equidigital number, since it uses as much as digits as its factorization.

1113110321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1113110321 is about 33363.3080044530. The cubic root of 1113110321 is about 1036.3649974452.

Adding to 1113110321 its reverse (1230113111), we get a palindrome (2343223432).

The spelling of 1113110321 in words is "one billion, one hundred thirteen million, one hundred ten thousand, three hundred twenty-one".