20001201013 has 16 divisors (see below), whose sum is σ = 20641420800. Its totient is φ = 19373048640.

The previous prime is 20001200971. The next prime is 20001201019. The reversal of 20001201013 is 31010210002.

It is a cyclic number.

It is not a de Polignac number, because 20001201013 - 2¹⁷ = 20001069941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001201019) 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, 1155420 + ... + 1172602.

It is an arithmetic number, because the mean of its divisors is an integer number (1290088800).

Almost surely, 2^20001201013 is an apocalyptic number.

It is an amenable number.

20001201013 is a deficient number, since it is larger than the sum of its proper divisors (640219787).

20001201013 is a wasteful number, since it uses less digits than its factorization.

20001201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17532.

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

Adding to 20001201013 its reverse (31010210002), we get a palindrome (51011411015).

The spelling of 20001201013 in words is "twenty billion, one million, two hundred one thousand, thirteen".