11261331 has 6 divisors (see below), whose sum is σ = 16266380. Its totient is φ = 7507548.

The previous prime is 11261323. The next prime is 11261333. The reversal of 11261331 is 13316211.

It is not a de Polignac number, because 11261331 - 2³ = 11261323 is a prime.

It is a super-2 number, since 2×11261331² = 253635151783122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11261333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 625621 + ... + 625638.

Almost surely, 2^11261331 is an apocalyptic number.

11261331 is a deficient number, since it is larger than the sum of its proper divisors (5005049).

11261331 is a wasteful number, since it uses less digits than its factorization.

11261331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251265 (or 1251262 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 11261331 is about 3355.7906668921. The cubic root of 11261331 is about 224.1454399332.

Adding to 11261331 its reverse (13316211), we get a palindrome (24577542).

The spelling of 11261331 in words is "eleven million, two hundred sixty-one thousand, three hundred thirty-one".