11520907 has 4 divisors (see below), whose sum is σ = 12021840. Its totient is φ = 11019976.

The previous prime is 11520889. The next prime is 11520911. The reversal of 11520907 is 70902511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70902511 = 1667 ⋅42533.

It is a cyclic number.

It is not a de Polignac number, because 11520907 - 2²³ = 3132299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250432 + ... + 250477.

It is an arithmetic number, because the mean of its divisors is an integer number (3005460).

Almost surely, 2^11520907 is an apocalyptic number.

11520907 is a deficient number, since it is larger than the sum of its proper divisors (500933).

11520907 is an equidigital number, since it uses as much as digits as its factorization.

11520907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500932.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 11520907 is about 3394.2461607845. The cubic root of 11520907 is about 225.8545739959.

The spelling of 11520907 in words is "eleven million, five hundred twenty thousand, nine hundred seven".