1331230313 has 8 divisors (see below), whose sum is σ = 1530517632. Its totient is φ = 1134220896.

The previous prime is 1331230301. The next prime is 1331230337. The reversal of 1331230313 is 3130321331.

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 1331230313 - 2⁸ = 1331230057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331230013) 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, 568220 + ... + 570557.

It is an arithmetic number, because the mean of its divisors is an integer number (191314704).

Almost surely, 2^1331230313 is an apocalyptic number.

It is an amenable number.

1331230313 is a deficient number, since it is larger than the sum of its proper divisors (199287319).

1331230313 is a wasteful number, since it uses less digits than its factorization.

1331230313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138951.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1331230313 is about 36486.0290111160. The cubic root of 1331230313 is about 1100.0634434482.

Adding to 1331230313 its reverse (3130321331), we get a palindrome (4461551644).

The spelling of 1331230313 in words is "one billion, three hundred thirty-one million, two hundred thirty thousand, three hundred thirteen".