1331013 has 8 divisors (see below), whose sum is σ = 1836000. Its totient is φ = 856688.

The previous prime is 1330997. The next prime is 1331023. The reversal of 1331013 is 3101331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331013 - 2⁴ = 1330997 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331023) 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, 7563 + ... + 7736.

It is an arithmetic number, because the mean of its divisors is an integer number (229500).

2^1331013 is an apocalyptic number.

It is an amenable number.

1331013 is a deficient number, since it is larger than the sum of its proper divisors (504987).

1331013 is a wasteful number, since it uses less digits than its factorization.

1331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15331.

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

The square root of 1331013 is about 1153.6953670705. The cubic root of 1331013 is about 110.0003581256. Note that the first 3 decimals are identical.

Adding to 1331013 its reverse (3101331), we get a palindrome (4432344).

The spelling of 1331013 in words is "one million, three hundred thirty-one thousand, thirteen".