201311112123113 has 16 divisors (see below), whose sum is σ = 224713455966720. Its totient is φ = 179363121248256.

The previous prime is 201311112123109. The next prime is 201311112123127. The reversal of 201311112123113 is 311321211113102.

It is a cyclic number.

It is not a de Polignac number, because 201311112123113 - 2² = 201311112123109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201311112183113) 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, 2653890833 + ... + 2653966686.

It is an arithmetic number, because the mean of its divisors is an integer number (14044590997920).

Almost surely, 2^{201311112123113} is an apocalyptic number.

201311112123113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

201311112123113 is a deficient number, since it is larger than the sum of its proper divisors (23402343843607).

201311112123113 is a wasteful number, since it uses less digits than its factorization.

201311112123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5307857656.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 201311112123113 its reverse (311321211113102), we get a palindrome (512632323236215).

The spelling of 201311112123113 in words is "two hundred one trillion, three hundred eleven billion, one hundred twelve million, one hundred twenty-three thousand, one hundred thirteen".