11510531 has 2 divisors, whose sum is σ = 11510532. Its totient is φ = 11510530.

The previous prime is 11510507. The next prime is 11510539. The reversal of 11510531 is 13501511.

11510531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13501511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11510531 - 2⁶ = 11510467 is a prime.

It is a super-2 number, since 2×11510531² = 264984647803922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11510539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5755265 + 5755266.

It is an arithmetic number, because the mean of its divisors is an integer number (5755266).

Almost surely, 2^11510531 is an apocalyptic number.

11510531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11510531 is an equidigital number, since it uses as much as digits as its factorization.

11510531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 11510531 is about 3392.7173474960. The cubic root of 11510531 is about 225.7867503156.

The spelling of 11510531 in words is "eleven million, five hundred ten thousand, five hundred thirty-one".