11311371 has 6 divisors (see below), whose sum is σ = 16338660. Its totient is φ = 7540908.

The previous prime is 11311361. The next prime is 11311387. The reversal of 11311371 is 17311311.

It is not a de Polignac number, because 11311371 - 2¹³ = 11303179 is a prime.

It is a super-2 number, since 2×11311371² = 255894227799282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11311301) 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 in 5 ways as a sum of consecutive naturals, for example, 628401 + ... + 628418.

It is an arithmetic number, because the mean of its divisors is an integer number (2723110).

Almost surely, 2^11311371 is an apocalyptic number.

11311371 is a deficient number, since it is larger than the sum of its proper divisors (5027289).

11311371 is a wasteful number, since it uses less digits than its factorization.

11311371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256825 (or 1256822 counting only the distinct ones).

The product of its digits is 63, while the sum is 18.

The square root of 11311371 is about 3363.2381717624. The cubic root of 11311371 is about 224.4769479789.

Adding to 11311371 its reverse (17311311), we get a palindrome (28622682).

The spelling of 11311371 in words is "eleven million, three hundred eleven thousand, three hundred seventy-one".