1150520911 has 2 divisors, whose sum is σ = 1150520912. Its totient is φ = 1150520910.

The previous prime is 1150520879. The next prime is 1150520929. The reversal of 1150520911 is 1190250511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1150520911 - 2⁵ = 1150520879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1150520971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575260455 + 575260456.

It is an arithmetic number, because the mean of its divisors is an integer number (575260456).

Almost surely, 2^1150520911 is an apocalyptic number.

1150520911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150520911 is an equidigital number, since it uses as much as digits as its factorization.

1150520911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 25.

The square root of 1150520911 is about 33919.3294597638. The cubic root of 1150520911 is about 1047.8477185719.

The spelling of 1150520911 in words is "one billion, one hundred fifty million, five hundred twenty thousand, nine hundred eleven".