20010312001 has 4 divisors (see below), whose sum is σ = 20208434004. Its totient is φ = 19812190000.

The previous prime is 20010311987. The next prime is 20010312059. The reversal of 20010312001 is 10021301002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18714240000 + 1296072001 = 136800^2 + 36001^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010312001 - 2⁵ = 20010311969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010312071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99060850 + ... + 99061051.

It is an arithmetic number, because the mean of its divisors is an integer number (5052108501).

Almost surely, 2^20010312001 is an apocalyptic number.

It is an amenable number.

20010312001 is a deficient number, since it is larger than the sum of its proper divisors (198122003).

20010312001 is a wasteful number, since it uses less digits than its factorization.

20010312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198122002.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20010312001 its reverse (10021301002), we get a palindrome (30031613003).

The spelling of 20010312001 in words is "twenty billion, ten million, three hundred twelve thousand, one".