1321301013 has 16 divisors (see below), whose sum is σ = 1866343680. Its totient is φ = 828617216.

The previous prime is 1321300963. The next prime is 1321301027. The reversal of 1321301013 is 3101031231.

It is a cyclic number.

It is not a de Polignac number, because 1321301013 - 2¹³ = 1321292821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321300983 and 1321301001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321301063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111508 + ... + 122786.

It is an arithmetic number, because the mean of its divisors is an integer number (116646480).

Almost surely, 2^1321301013 is an apocalyptic number.

It is an amenable number.

1321301013 is a deficient number, since it is larger than the sum of its proper divisors (545042667).

1321301013 is a wasteful number, since it uses less digits than its factorization.

1321301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13596.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1321301013 is about 36349.7044417145. The cubic root of 1321301013 is about 1097.3215863210.

Adding to 1321301013 its reverse (3101031231), we get a palindrome (4422332244).

The spelling of 1321301013 in words is "one billion, three hundred twenty-one million, three hundred one thousand, thirteen".