220113121311 has 12 divisors (see below), whose sum is σ = 321771792888. Its totient is φ = 144974103504.

The previous prime is 220113121279. The next prime is 220113121321. The reversal of 220113121311 is 113121311022.

220113121311 is a `hidden beast` number, since 2 + 201 + 131 + 21 + 311 = 666.

It is not a de Polignac number, because 220113121311 - 2⁵ = 220113121279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220113121321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147330660 + ... + 147332153.

It is an arithmetic number, because the mean of its divisors is an integer number (26814316074).

Almost surely, 2^220113121311 is an apocalyptic number.

220113121311 is a deficient number, since it is larger than the sum of its proper divisors (101658671577).

220113121311 is a wasteful number, since it uses less digits than its factorization.

220113121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294662902 (or 294662899 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 220113121311 its reverse (113121311022), we get a palindrome (333234432333).

The spelling of 220113121311 in words is "two hundred twenty billion, one hundred thirteen million, one hundred twenty-one thousand, three hundred eleven".