11142311 has 2 divisors, whose sum is σ = 11142312. Its totient is φ = 11142310.

The previous prime is 11142253. The next prime is 11142317. The reversal of 11142311 is 11324111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11142311 - 2⁶ = 11142247 is a prime.

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 (11142317) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571155 + 5571156.

It is an arithmetic number, because the mean of its divisors is an integer number (5571156).

Almost surely, 2^11142311 is an apocalyptic number.

11142311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11142311 is an equidigital number, since it uses as much as digits as its factorization.

11142311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24, while the sum is 14.

The square root of 11142311 is about 3338.0100359346. The cubic root of 11142311 is about 223.3529838406.

Adding to 11142311 its reverse (11324111), we get a palindrome (22466422).

The spelling of 11142311 in words is "eleven million, one hundred forty-two thousand, three hundred eleven".