11031971 has 2 divisors, whose sum is σ = 11031972. Its totient is φ = 11031970.

The previous prime is 11031967. The next prime is 11031983. The reversal of 11031971 is 17913011.

11031971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11031971 - 2² = 11031967 is a prime.

It is not a weakly prime, because it can be changed into another prime (11031931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515985 + 5515986.

It is an arithmetic number, because the mean of its divisors is an integer number (5515986).

Almost surely, 2^11031971 is an apocalyptic number.

11031971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031971 is an equidigital number, since it uses as much as digits as its factorization.

11031971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 11031971 is about 3321.4411028949. The cubic root of 11031971 is about 222.6132638834.

Adding to 11031971 its reverse (17913011), we get a palindrome (28944982).

The spelling of 11031971 in words is "eleven million, thirty-one thousand, nine hundred seventy-one".