20112113013 has 16 divisors (see below), whose sum is σ = 27071315520. Its totient is φ = 13280649984.

The previous prime is 20112112877. The next prime is 20112113023. The reversal of 20112113013 is 31031121102.

It is a happy number.

It is not a de Polignac number, because 20112113013 - 2²⁰ = 20111064437 is a prime.

It is a super-3 number, since 3×20112113013³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20112112983 and 20112113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112113023) 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, 516495 + ... + 554067.

It is an arithmetic number, because the mean of its divisors is an integer number (1691957220).

Almost surely, 2^20112113013 is an apocalyptic number.

It is an amenable number.

20112113013 is a deficient number, since it is larger than the sum of its proper divisors (6959202507).

20112113013 is a wasteful number, since it uses less digits than its factorization.

20112113013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39268.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20112113013 its reverse (31031121102), we get a palindrome (51143234115).

The spelling of 20112113013 in words is "twenty billion, one hundred twelve million, one hundred thirteen thousand, thirteen".