1111321313 has 2 divisors, whose sum is σ = 1111321314. Its totient is φ = 1111321312.

The previous prime is 1111321259. The next prime is 1111321319. The reversal of 1111321313 is 3131231111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 649587169 + 461734144 = 25487^2 + 21488^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111321313 - 2⁶ = 1111321249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111321291 and 1111321300.

It is not a weakly prime, because it can be changed into another prime (1111321319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555660656 + 555660657.

It is an arithmetic number, because the mean of its divisors is an integer number (555660657).

Almost surely, 2^1111321313 is an apocalyptic number.

It is an amenable number.

1111321313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111321313 is an equidigital number, since it uses as much as digits as its factorization.

1111321313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54, while the sum is 17.

The square root of 1111321313 is about 33336.4862125570. The cubic root of 1111321313 is about 1035.8094791471.

Adding to 1111321313 its reverse (3131231111), we get a palindrome (4242552424).

The spelling of 1111321313 in words is "one billion, one hundred eleven million, three hundred twenty-one thousand, three hundred thirteen".