1131241841 has 4 divisors (see below), whose sum is σ = 1131318384. Its totient is φ = 1131165300.

The previous prime is 1131241763. The next prime is 1131241933. The reversal of 1131241841 is 1481421311.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1481421311 = 1721 ⋅860791.

It is a cyclic number.

It is not a de Polignac number, because 1131241841 - 2¹⁸ = 1130979697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131241841.

It is not an unprimeable number, because it can be changed into a prime (1131241141) 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, 8255 + ... + 48276.

It is an arithmetic number, because the mean of its divisors is an integer number (282829596).

Almost surely, 2^1131241841 is an apocalyptic number.

It is an amenable number.

1131241841 is a deficient number, since it is larger than the sum of its proper divisors (76543).

1131241841 is an equidigital number, since it uses as much as digits as its factorization.

1131241841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76542.

The product of its digits is 768, while the sum is 26.

The square root of 1131241841 is about 33633.9388267268. The cubic root of 1131241841 is about 1041.9618543414.

The spelling of 1131241841 in words is "one billion, one hundred thirty-one million, two hundred forty-one thousand, eight hundred forty-one".