11810131 has 2 divisors, whose sum is σ = 11810132. Its totient is φ = 11810130.

The previous prime is 11810119. The next prime is 11810137. The reversal of 11810131 is 13101811.

11810131 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 11810131 - 2⁷ = 11810003 is a prime.

It is a super-2 number, since 2×11810131² = 278958388474322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11810137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5905065 + 5905066.

It is an arithmetic number, because the mean of its divisors is an integer number (5905066).

Almost surely, 2^11810131 is an apocalyptic number.

11810131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11810131 is an equidigital number, since it uses as much as digits as its factorization.

11810131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 11810131 is about 3436.5871151478. The cubic root of 11810131 is about 227.7289471547.

Adding to 11810131 its reverse (13101811), we get a palindrome (24911942).

The spelling of 11810131 in words is "eleven million, eight hundred ten thousand, one hundred thirty-one".