11523731 has 2 divisors, whose sum is σ = 11523732. Its totient is φ = 11523730.

The previous prime is 11523683. The next prime is 11523749. The reversal of 11523731 is 13732511.

11523731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11523731 is a prime.

It is a super-2 number, since 2×11523731² = 265592752320722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11523697 and 11523706.

It is not a weakly prime, because it can be changed into another prime (11523751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5761865 + 5761866.

It is an arithmetic number, because the mean of its divisors is an integer number (5761866).

Almost surely, 2^11523731 is an apocalyptic number.

11523731 is a deficient number, since it is larger than the sum of its proper divisors (1).

11523731 is an equidigital number, since it uses as much as digits as its factorization.

11523731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630, while the sum is 23.

The square root of 11523731 is about 3394.6621334089. The cubic root of 11523731 is about 225.8730262818.

The spelling of 11523731 in words is "eleven million, five hundred twenty-three thousand, seven hundred thirty-one".