20020312001 has 2 divisors, whose sum is σ = 20020312002. Its totient is φ = 20020312000.

The previous prime is 20020311967. The next prime is 20020312019. The reversal of 20020312001 is 10021302002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14780723776 + 5239588225 = 121576^2 + 72385^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020312001 - 2¹⁰ = 20020310977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20020312051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010156000 + 10010156001.

It is an arithmetic number, because the mean of its divisors is an integer number (10010156001).

Almost surely, 2^20020312001 is an apocalyptic number.

It is an amenable number.

20020312001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020312001 is an equidigital number, since it uses as much as digits as its factorization.

20020312001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20020312001 its reverse (10021302002), we get a palindrome (30041614003).

Subtracting from 20020312001 its reverse (10021302002), we obtain a palindrome (9999009999).

The spelling of 20020312001 in words is "twenty billion, twenty million, three hundred twelve thousand, one".