20112240313011 has 144 divisors (see below), whose sum is σ = 35406593510400. Its totient is φ = 10107357321600.

The previous prime is 20112240312961. The next prime is 20112240313043. The reversal of 20112240313011 is 11031304221102.

It is not a de Polignac number, because 20112240313011 - 2³¹ = 20110092829363 is a prime.

It is a super-2 number, since 2×20112240313011² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20112240313211) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2398021360 + ... + 2398029746.

It is an arithmetic number, because the mean of its divisors is an integer number (245879121600).

Almost surely, 2^{20112240313011} is an apocalyptic number.

20112240313011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20112240313011 is a deficient number, since it is larger than the sum of its proper divisors (15294353197389).

20112240313011 is a wasteful number, since it uses less digits than its factorization.

20112240313011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806 (or 12788 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20112240313011 its reverse (11031304221102), we get a palindrome (31143544534113).

The spelling of 20112240313011 in words is "twenty trillion, one hundred twelve billion, two hundred forty million, three hundred thirteen thousand, eleven".