20001302001 has 48 divisors (see below), whose sum is σ = 30914228800. Its totient is φ = 12779762688.

The previous prime is 20001301997. The next prime is 20001302023. The reversal of 20001302001 is 10020310002.

It is a happy number.

It is not a de Polignac number, because 20001302001 - 2² = 20001301997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001303001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3153105 + ... + 3159441.

Almost surely, 2^20001302001 is an apocalyptic number.

It is an amenable number.

20001302001 is a deficient number, since it is larger than the sum of its proper divisors (10912926799).

20001302001 is a wasteful number, since it uses less digits than its factorization.

20001302001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543 (or 6508 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20001302001 its reverse (10020310002), we get a palindrome (30021612003).

The spelling of 20001302001 in words is "twenty billion, one million, three hundred two thousand, one".