1331324111 has 16 divisors (see below), whose sum is σ = 1584080064. Its totient is φ = 1106333184.

The previous prime is 1331324101. The next prime is 1331324173. The reversal of 1331324111 is 1114231331.

It is a cyclic number.

It is not a de Polignac number, because 1331324111 - 2¹⁰ = 1331323087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331324101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125876 + ... + 136041.

It is an arithmetic number, because the mean of its divisors is an integer number (99005004).

Almost surely, 2^1331324111 is an apocalyptic number.

1331324111 is a deficient number, since it is larger than the sum of its proper divisors (252755953).

1331324111 is a wasteful number, since it uses less digits than its factorization.

1331324111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261970.

The product of its digits is 216, while the sum is 20.

The square root of 1331324111 is about 36487.3143845913. The cubic root of 1331324111 is about 1100.0892795305.

Adding to 1331324111 its reverse (1114231331), we get a palindrome (2445555442).

The spelling of 1331324111 in words is "one billion, three hundred thirty-one million, three hundred twenty-four thousand, one hundred eleven".