11411531 has 4 divisors (see below), whose sum is σ = 11512632. Its totient is φ = 11310432.

The previous prime is 11411501. The next prime is 11411563. The reversal of 11411531 is 13511411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11411531 - 2¹⁴ = 11395147 is a prime.

It is a super-2 number, since 2×11411531² = 260446079527922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11411501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50381 + ... + 50606.

It is an arithmetic number, because the mean of its divisors is an integer number (2878158).

Almost surely, 2^11411531 is an apocalyptic number.

11411531 is a deficient number, since it is larger than the sum of its proper divisors (101101).

11411531 is a wasteful number, since it uses less digits than its factorization.

11411531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101100.

The product of its digits is 60, while the sum is 17.

The square root of 11411531 is about 3378.0957653684. The cubic root of 11411531 is about 225.1375685462.

Adding to 11411531 its reverse (13511411), we get a palindrome (24922942).

The spelling of 11411531 in words is "eleven million, four hundred eleven thousand, five hundred thirty-one".