1311210001 has 8 divisors (see below), whose sum is σ = 1315632384. Its totient is φ = 1306795680.

The previous prime is 1311209989. The next prime is 1311210011. The reversal of 1311210001 is 1000121131.

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 1311210001 - 2¹³ = 1311201809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311210001.

It is not an unprimeable number, because it can be changed into a prime (1311210011) 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, 535941 + ... + 538381.

It is an arithmetic number, because the mean of its divisors is an integer number (164454048).

Almost surely, 2^1311210001 is an apocalyptic number.

It is an amenable number.

1311210001 is a deficient number, since it is larger than the sum of its proper divisors (4422383).

1311210001 is a wasteful number, since it uses less digits than its factorization.

1311210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1311210001 is about 36210.6338110782. The cubic root of 1311210001 is about 1094.5209641955.

Adding to 1311210001 its reverse (1000121131), we get a palindrome (2311331132).

The spelling of 1311210001 in words is "one billion, three hundred eleven million, two hundred ten thousand, one".