11125131 has 8 divisors (see below), whose sum is σ = 14872464. Its totient is φ = 7397280.

The previous prime is 11125129. The next prime is 11125139. The reversal of 11125131 is 13152111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11125131 - 2¹ = 11125129 is a prime.

It is a super-2 number, since 2×11125131² = 247537079534322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11125131.

It is not an unprimeable number, because it can be changed into a prime (11125139) 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 7 ways as a sum of consecutive naturals, for example, 3480 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (1859058).

Almost surely, 2^11125131 is an apocalyptic number.

11125131 is a deficient number, since it is larger than the sum of its proper divisors (3747333).

11125131 is an equidigital number, since it uses as much as digits as its factorization.

11125131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741.

The product of its digits is 30, while the sum is 15.

The square root of 11125131 is about 3335.4356537040. The cubic root of 11125131 is about 223.2381310029.

Adding to 11125131 its reverse (13152111), we get a palindrome (24277242).

The spelling of 11125131 in words is "eleven million, one hundred twenty-five thousand, one hundred thirty-one".