20833000001 has 16 divisors (see below), whose sum is σ = 22909824000. Its totient is φ = 18787129680.

The previous prime is 20832999997. The next prime is 20833000009. The reversal of 20833000001 is 10000033802.

It is not a de Polignac number, because 20833000001 - 2² = 20832999997 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 (20833000009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905300 + ... + 928026.

It is an arithmetic number, because the mean of its divisors is an integer number (1431864000).

Almost surely, 2^20833000001 is an apocalyptic number.

20833000001 is the 83333-rd octagonal number.

It is an amenable number.

20833000001 is a deficient number, since it is larger than the sum of its proper divisors (2076823999).

20833000001 is a wasteful number, since it uses less digits than its factorization.

20833000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23404.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20833000001 its reverse (10000033802), we get a palindrome (30833033803).

The spelling of 20833000001 in words is "twenty billion, eight hundred thirty-three million, one", and thus it is an aban number.