1130313721 has 2 divisors, whose sum is σ = 1130313722. Its totient is φ = 1130313720.

The previous prime is 1130313683. The next prime is 1130313727. The reversal of 1130313721 is 1273130311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1097994496 + 32319225 = 33136^2 + 5685^2 .

It is an emirp because it is prime and its reverse (1273130311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1130313721 - 2¹¹ = 1130311673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1130313692 and 1130313701.

It is not a weakly prime, because it can be changed into another prime (1130313727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565156860 + 565156861.

It is an arithmetic number, because the mean of its divisors is an integer number (565156861).

Almost surely, 2^1130313721 is an apocalyptic number.

It is an amenable number.

1130313721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130313721 is an equidigital number, since it uses as much as digits as its factorization.

1130313721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1130313721 is about 33620.1386225578. The cubic root of 1130313721 is about 1041.6768194367.

The spelling of 1130313721 in words is "one billion, one hundred thirty million, three hundred thirteen thousand, seven hundred twenty-one".