11711131 has 8 divisors (see below), whose sum is σ = 12142080. Its totient is φ = 11287848.

The previous prime is 11711123. The next prime is 11711137. The reversal of 11711131 is 13111711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11711131 - 2³ = 11711123 is a prime.

It is a super-2 number, since 2×11711131² = 274301178598322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11711137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (1517760).

Almost surely, 2^11711131 is an apocalyptic number.

11711131 is a deficient number, since it is larger than the sum of its proper divisors (430949).

11711131 is an equidigital number, since it uses as much as digits as its factorization.

11711131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3833.

The product of its digits is 21, while the sum is 16.

The square root of 11711131 is about 3422.1529772937. The cubic root of 11711131 is about 227.0908380391.

Adding to 11711131 its reverse (13111711), we get a palindrome (24822842).

The spelling of 11711131 in words is "eleven million, seven hundred eleven thousand, one hundred thirty-one".