1150321013 has 2 divisors, whose sum is σ = 1150321014. Its totient is φ = 1150321012.

The previous prime is 1150320979. The next prime is 1150321019. The reversal of 1150321013 is 3101230511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 710915569 + 439405444 = 26663^2 + 20962^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150321013 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 = 1150320982 and 1150321000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1150321019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575160506 + 575160507.

It is an arithmetic number, because the mean of its divisors is an integer number (575160507).

Almost surely, 2^1150321013 is an apocalyptic number.

It is an amenable number.

1150321013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150321013 is an equidigital number, since it uses as much as digits as its factorization.

1150321013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1150321013 is about 33916.3826638396. The cubic root of 1150321013 is about 1047.7870287304.

Adding to 1150321013 its reverse (3101230511), we get a palindrome (4251551524).

The spelling of 1150321013 in words is "one billion, one hundred fifty million, three hundred twenty-one thousand, thirteen".