20113244124311 has 4 divisors (see below), whose sum is σ = 21660416749272. Its totient is φ = 18566071499352.

The previous prime is 20113244124307. The next prime is 20113244124317. The reversal of 20113244124311 is 11342144231102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20113244124311 - 2² = 20113244124307 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 (20113244124317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773586312461 + ... + 773586312486.

It is an arithmetic number, because the mean of its divisors is an integer number (5415104187318).

Almost surely, 2^{20113244124311} is an apocalyptic number.

20113244124311 is a deficient number, since it is larger than the sum of its proper divisors (1547172624961).

20113244124311 is a wasteful number, since it uses less digits than its factorization.

20113244124311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547172624960.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 20113244124311 its reverse (11342144231102), we get a palindrome (31455388355413).

The spelling of 20113244124311 in words is "twenty trillion, one hundred thirteen billion, two hundred forty-four million, one hundred twenty-four thousand, three hundred eleven".