1131235041 has 4 divisors (see below), whose sum is σ = 1508313392. Its totient is φ = 754156692.

The previous prime is 1131235009. The next prime is 1131235067. The reversal of 1131235041 is 1405321311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1405321311 = 3 ⋅468440437.

It is not a de Polignac number, because 1131235041 - 2⁵ = 1131235009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1131234999 and 1131235017.

It is not an unprimeable number, because it can be changed into a prime (1131235081) 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, 188539171 + ... + 188539176.

It is an arithmetic number, because the mean of its divisors is an integer number (377078348).

Almost surely, 2^1131235041 is an apocalyptic number.

It is an amenable number.

1131235041 is a deficient number, since it is larger than the sum of its proper divisors (377078351).

1131235041 is an equidigital number, since it uses as much as digits as its factorization.

1131235041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377078350.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1131235041 is about 33633.8377382064. The cubic root of 1131235041 is about 1041.9597665607.

Adding to 1131235041 its reverse (1405321311), we get a palindrome (2536556352).

The spelling of 1131235041 in words is "one billion, one hundred thirty-one million, two hundred thirty-five thousand, forty-one".