1131330111 has 8 divisors (see below), whose sum is σ = 1508712240. Its totient is φ = 754084032.

The previous prime is 1131330077. The next prime is 1131330131. The reversal of 1131330111 is 1110331311.

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

It is not a de Polignac number, because 1131330111 - 2⁶ = 1131330047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131330131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12700 + ... + 49233.

It is an arithmetic number, because the mean of its divisors is an integer number (188589030).

Almost surely, 2^1131330111 is an apocalyptic number.

1131330111 is a deficient number, since it is larger than the sum of its proper divisors (377382129).

1131330111 is an equidigital number, since it uses as much as digits as its factorization.

1131330111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68025.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1131330111 is about 33635.2510173479. The cubic root of 1131330111 is about 1041.9889548185.

Adding to 1131330111 its reverse (1110331311), we get a palindrome (2241661422).

The spelling of 1131330111 in words is "one billion, one hundred thirty-one million, three hundred thirty thousand, one hundred eleven".