1321300001 has 32 divisors (see below), whose sum is σ = 1607865600. Its totient is φ = 1061786880.

The previous prime is 1321299979. The next prime is 1321300009. The reversal of 1321300001 is 1000031231.

It is not a de Polignac number, because 1321300001 - 2⁶ = 1321299937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321300009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1998611 + ... + 1999271.

It is an arithmetic number, because the mean of its divisors is an integer number (50245800).

Almost surely, 2^1321300001 is an apocalyptic number.

It is an amenable number.

1321300001 is a deficient number, since it is larger than the sum of its proper divisors (286565599).

1321300001 is a wasteful number, since it uses less digits than its factorization.

1321300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1321300001 is about 36349.6905213786. The cubic root of 1321300001 is about 1097.3213061704.

Adding to 1321300001 its reverse (1000031231), we get a palindrome (2321331232).

The spelling of 1321300001 in words is "one billion, three hundred twenty-one million, three hundred thousand, one".