1311330 has 16 divisors (see below), whose sum is σ = 3147264. Its totient is φ = 349680.

The previous prime is 1311311. The next prime is 1311341. The reversal of 1311330 is 331131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21826 + ... + 21885.

It is an arithmetic number, because the mean of its divisors is an integer number (196704).

2^1311330 is an apocalyptic number.

1311330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311330 is an abundant number, since it is smaller than the sum of its proper divisors (1835934).

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

1311330 is a wasteful number, since it uses less digits than its factorization.

1311330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43721.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 1311330 is about 1145.1331800275. The cubic root of 1311330 is about 109.4554352545.

Adding to 1311330 its reverse (331131), we get a palindrome (1642461).

The spelling of 1311330 in words is "one million, three hundred eleven thousand, three hundred thirty".