11712131 has 2 divisors, whose sum is σ = 11712132. Its totient is φ = 11712130.

The previous prime is 11712121. The next prime is 11712137. The reversal of 11712131 is 13121711.

11712131 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 a cyclic number.

It is not a de Polignac number, because 11712131 - 2²² = 7517827 is a prime.

It is a super-2 number, since 2×11712131² = 274348025122322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11712137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5856065 + 5856066.

It is an arithmetic number, because the mean of its divisors is an integer number (5856066).

Almost surely, 2^11712131 is an apocalyptic number.

11712131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11712131 is an equidigital number, since it uses as much as digits as its factorization.

11712131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42, while the sum is 17.

The square root of 11712131 is about 3422.2990810273. The cubic root of 11712131 is about 227.0973015302.

Adding to 11712131 its reverse (13121711), we get a palindrome (24833842).

The spelling of 11712131 in words is "eleven million, seven hundred twelve thousand, one hundred thirty-one".