20112112011013 has 8 divisors (see below), whose sum is σ = 21947088483936. Its totient is φ = 18278235980400.

The previous prime is 20112112011001. The next prime is 20112112011023. The reversal of 20112112011013 is 31011021121102.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-20112112011013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112112011023) 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, 275072358 + ... + 275145463.

It is an arithmetic number, because the mean of its divisors is an integer number (2743386060492).

Almost surely, 2^{20112112011013} is an apocalyptic number.

It is an amenable number.

20112112011013 is a deficient number, since it is larger than the sum of its proper divisors (1834976472923).

20112112011013 is a wasteful number, since it uses less digits than its factorization.

20112112011013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550221155.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 20112112011013 its reverse (31011021121102), we get a palindrome (51123133132115).

The spelling of 20112112011013 in words is "twenty trillion, one hundred twelve billion, one hundred twelve million, eleven thousand, thirteen".