201111021113 has 16 divisors (see below), whose sum is σ = 212918872320. Its totient is φ = 189629510784.

The previous prime is 201111021109. The next prime is 201111021149. The reversal of 201111021113 is 311120111102.

It is a cyclic number.

It is not a de Polignac number, because 201111021113 - 2² = 201111021109 is a prime.

It is a super-2 number, since 2×201111021113² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201111021313) 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, 12141245 + ... + 12157797.

It is an arithmetic number, because the mean of its divisors is an integer number (13307429520).

Almost surely, 2^201111021113 is an apocalyptic number.

It is an amenable number.

201111021113 is a deficient number, since it is larger than the sum of its proper divisors (11807851207).

201111021113 is a wasteful number, since it uses less digits than its factorization.

201111021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26368.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 201111021113 its reverse (311120111102), we get a palindrome (512231132215).

The spelling of 201111021113 in words is "two hundred one billion, one hundred eleven million, twenty-one thousand, one hundred thirteen".