1131100441 has 4 divisors (see below), whose sum is σ = 1167587584. Its totient is φ = 1094613300.

The previous prime is 1131100319. The next prime is 1131100447. The reversal of 1131100441 is 1440011311.

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.

It is a cyclic number.

It is not a de Polignac number, because 1131100441 - 2²⁷ = 996882713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131100447) 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, 18243525 + ... + 18243586.

It is an arithmetic number, because the mean of its divisors is an integer number (291896896).

Almost surely, 2^1131100441 is an apocalyptic number.

It is an amenable number.

1131100441 is a deficient number, since it is larger than the sum of its proper divisors (36487143).

1131100441 is an equidigital number, since it uses as much as digits as its factorization.

1131100441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36487142.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1131100441 is about 33631.8367176103. The cubic root of 1131100441 is about 1041.9184390610.

Adding to 1131100441 its reverse (1440011311), we get a palindrome (2571111752).

The spelling of 1131100441 in words is "one billion, one hundred thirty-one million, one hundred thousand, four hundred forty-one".