1331120 has 40 divisors (see below), whose sum is σ = 3538464. Its totient is φ = 456192.

The previous prime is 1331119. The next prime is 1331123. The reversal of 1331120 is 211331.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1331123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629 + ... + 1748.

2^1331120 is an apocalyptic number.

1331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331120 is an abundant number, since it is smaller than the sum of its proper divisors (2207344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331120 is a wasteful number, since it uses less digits than its factorization.

1331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1331120 is about 1153.7417388653. The cubic root of 1331120 is about 110.0033056858.

Adding to 1331120 its reverse (211331), we get a palindrome (1542451).

It can be divided in two parts, 13311 and 20, that added together give a palindrome (13331).

The spelling of 1331120 in words is "one million, three hundred thirty-one thousand, one hundred twenty".