20013000001 has 4 divisors (see below), whose sum is σ = 20019812400. Its totient is φ = 20006187604.

The previous prime is 20012999989. The next prime is 20013000043. The reversal of 20013000001 is 10000031002.

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 20013000001 - 2²⁵ = 19979445569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013000061) 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, 3401791 + ... + 3407668.

It is an arithmetic number, because the mean of its divisors is an integer number (5004953100).

Almost surely, 2^20013000001 is an apocalyptic number.

It is an amenable number.

20013000001 is a deficient number, since it is larger than the sum of its proper divisors (6812399).

20013000001 is an equidigital number, since it uses as much as digits as its factorization.

20013000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812398.

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 20013000001 its reverse (10000031002), we get a palindrome (30013031003).

The spelling of 20013000001 in words is "twenty billion, thirteen million, one", and thus it is an aban number and an uban number.