12311002001 has 8 divisors (see below), whose sum is σ = 12370385664. Its totient is φ = 12251656080.

The previous prime is 12311001977. The next prime is 12311002043. The reversal of 12311002001 is 10020011321.

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 12311002001 - 2²² = 12306807697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311002061) 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, 815615 + ... + 830571.

It is an arithmetic number, because the mean of its divisors is an integer number (1546298208).

Almost surely, 2^12311002001 is an apocalyptic number.

It is an amenable number.

12311002001 is a deficient number, since it is larger than the sum of its proper divisors (59383663).

12311002001 is a wasteful number, since it uses less digits than its factorization.

12311002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18871.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12311002001 its reverse (10020011321), we get a palindrome (22331013322).

The spelling of 12311002001 in words is "twelve billion, three hundred eleven million, two thousand, one".