1301001001 has 8 divisors (see below), whose sum is σ = 1320545160. Its totient is φ = 1281595392.

The previous prime is 1301000999. The next prime is 1301001011. The reversal of 1301001001 is 1001001031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 330366976 + 970634025 = 18176^2 + 31155^2 .

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 1301001001 - 2¹ = 1301000999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301001011) 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, 15640 + ... + 53353.

It is an arithmetic number, because the mean of its divisors is an integer number (165068145).

Almost surely, 2^1301001001 is an apocalyptic number.

It is an amenable number.

1301001001 is a deficient number, since it is larger than the sum of its proper divisors (19544159).

1301001001 is a wasteful number, since it uses less digits than its factorization.

1301001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69275.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 1301001001 is about 36069.3914697767. The cubic root of 1301001001 is about 1091.6729356463.

Adding to 1301001001 its reverse (1001001031), we get a palindrome (2302002032).

The spelling of 1301001001 in words is "one billion, three hundred one million, one thousand, one".