11501452009 has 2 divisors, whose sum is σ = 11501452010. Its totient is φ = 11501452008.

The previous prime is 11501451971. The next prime is 11501452019. The reversal of 11501452009 is 90025410511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9863469225 + 1637982784 = 99315^2 + 40472^2 .

It is a cyclic number.

It is not a de Polignac number, because 11501452009 - 2¹³ = 11501443817 is a prime.

It is not a weakly prime, because it can be changed into another prime (11501452019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750726004 + 5750726005.

It is an arithmetic number, because the mean of its divisors is an integer number (5750726005).

Almost surely, 2^11501452009 is an apocalyptic number.

It is an amenable number.

11501452009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11501452009 is an equidigital number, since it uses as much as digits as its factorization.

11501452009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 11501452009 in words is "eleven billion, five hundred one million, four hundred fifty-two thousand, nine".