20110013012 has 12 divisors (see below), whose sum is σ = 35286875316. Its totient is φ = 10028048640.

The previous prime is 20110013009. The next prime is 20110013017. The reversal of 20110013012 is 21031001102.

It can be written as a sum of positive squares in 2 ways, for example, as 16110209476 + 3999803536 = 126926^2 + 63244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20110012984 and 20110013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110013017) 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 3 ways as a sum of consecutive naturals, for example, 6737789 + ... + 6740772.

It is an arithmetic number, because the mean of its divisors is an integer number (2940572943).

Almost surely, 2^20110013012 is an apocalyptic number.

It is an amenable number.

20110013012 is a deficient number, since it is larger than the sum of its proper divisors (15176862304).

20110013012 is a wasteful number, since it uses less digits than its factorization.

20110013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13478938 (or 13478936 counting only the distinct ones).

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

Adding to 20110013012 its reverse (21031001102), we get a palindrome (41141014114).

The spelling of 20110013012 in words is "twenty billion, one hundred ten million, thirteen thousand, twelve".