11532431 has 2 divisors, whose sum is σ = 11532432. Its totient is φ = 11532430.

The previous prime is 11532397. The next prime is 11532457. The reversal of 11532431 is 13423511.

It is a strong prime.

It is an emirp because it is prime and its reverse (13423511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11532431 - 2¹⁰ = 11531407 is a prime.

It is a super-2 number, since 2×11532431² = 265993929539522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11532481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5766215 + 5766216.

It is an arithmetic number, because the mean of its divisors is an integer number (5766216).

Almost surely, 2^11532431 is an apocalyptic number.

11532431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11532431 is an equidigital number, since it uses as much as digits as its factorization.

11532431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 20.

The square root of 11532431 is about 3395.9433151924. The cubic root of 11532431 is about 225.9298539710.

Adding to 11532431 its reverse (13423511), we get a palindrome (24955942).

The spelling of 11532431 in words is "eleven million, five hundred thirty-two thousand, four hundred thirty-one".