20011012013 has 8 divisors (see below), whose sum is σ = 20721156480. Its totient is φ = 19302208240.

The previous prime is 20011011961. The next prime is 20011012019. The reversal of 20011012013 is 31021011002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20011012013 - 2⁶ = 20011011949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011011985 and 20011012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011012019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304745 + ... + 364542.

It is an arithmetic number, because the mean of its divisors is an integer number (2590144560).

Almost surely, 2^20011012013 is an apocalyptic number.

It is an amenable number.

20011012013 is a deficient number, since it is larger than the sum of its proper divisors (710144467).

20011012013 is a wasteful number, since it uses less digits than its factorization.

20011012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670347.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20011012013 its reverse (31021011002), we get a palindrome (51032023015).

The spelling of 20011012013 in words is "twenty billion, eleven million, twelve thousand, thirteen".