20343312001 has 4 divisors (see below), whose sum is σ = 20999547904. Its totient is φ = 19687076100.

The previous prime is 20343311999. The next prime is 20343312019. The reversal of 20343312001 is 10021334302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20343312001 - 2¹ = 20343311999 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 20343312001.

It is not an unprimeable number, because it can be changed into a prime (20343312061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328117905 + ... + 328117966.

It is an arithmetic number, because the mean of its divisors is an integer number (5249886976).

Almost surely, 2^20343312001 is an apocalyptic number.

It is an amenable number.

20343312001 is a deficient number, since it is larger than the sum of its proper divisors (656235903).

20343312001 is an equidigital number, since it uses as much as digits as its factorization.

20343312001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656235902.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20343312001 its reverse (10021334302), we get a palindrome (30364646303).

The spelling of 20343312001 in words is "twenty billion, three hundred forty-three million, three hundred twelve thousand, one".