20310010001 has 4 divisors (see below), whose sum is σ = 20314620900. Its totient is φ = 20305399104.

The previous prime is 20310009991. The next prime is 20310010013. The reversal of 20310010001 is 10001001302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10001001302 = 2 ⋅5000500651.

It can be written as a sum of positive squares in 2 ways, for example, as 6632473600 + 13677536401 = 81440^2 + 116951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20310010001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20310010051) 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, 2298836 + ... + 2307653.

It is an arithmetic number, because the mean of its divisors is an integer number (5078655225).

Almost surely, 2^20310010001 is an apocalyptic number.

It is an amenable number.

20310010001 is a deficient number, since it is larger than the sum of its proper divisors (4610899).

20310010001 is an equidigital number, since it uses as much as digits as its factorization.

20310010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610898.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 20310010001 its reverse (10001001302), we get a palindrome (30311011303).

The spelling of 20310010001 in words is "twenty billion, three hundred ten million, ten thousand, one".