1301326001 has 4 divisors (see below), whose sum is σ = 1336497012. Its totient is φ = 1266154992.

The previous prime is 1301325997. The next prime is 1301326027. The reversal of 1301326001 is 1006231031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1192666225 + 108659776 = 34535^2 + 10424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301326001 - 2² = 1301325997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301326051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17585450 + ... + 17585523.

It is an arithmetic number, because the mean of its divisors is an integer number (334124253).

Almost surely, 2^1301326001 is an apocalyptic number.

It is an amenable number.

1301326001 is a deficient number, since it is larger than the sum of its proper divisors (35171011).

1301326001 is an equidigital number, since it uses as much as digits as its factorization.

1301326001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35171010.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1301326001 is about 36073.8963933756. The cubic root of 1301326001 is about 1091.7638308274.

Adding to 1301326001 its reverse (1006231031), we get a palindrome (2307557032).

The spelling of 1301326001 in words is "one billion, three hundred one million, three hundred twenty-six thousand, one".