1321300013 has 8 divisors (see below), whose sum is σ = 1443064896. Its totient is φ = 1199809600.

The previous prime is 1321300009. The next prime is 1321300031. The reversal of 1321300013 is 3100031231.

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

It is not a de Polignac number, because 1321300013 - 2² = 1321300009 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 (1321303013) 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, 58481 + ... + 77862.

It is an arithmetic number, because the mean of its divisors is an integer number (180383112).

Almost surely, 2^1321300013 is an apocalyptic number.

It is an amenable number.

1321300013 is a deficient number, since it is larger than the sum of its proper divisors (121764883).

1321300013 is a wasteful number, since it uses less digits than its factorization.

1321300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137235.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1321300013 is about 36349.6906864419. The cubic root of 1321300013 is about 1097.3213094924.

Adding to 1321300013 its reverse (3100031231), we get a palindrome (4421331244).

The spelling of 1321300013 in words is "one billion, three hundred twenty-one million, three hundred thousand, thirteen".