113231223111 has 32 divisors (see below), whose sum is σ = 166940766720. Its totient is φ = 67903176704.

The previous prime is 113231223103. The next prime is 113231223143. The reversal of 113231223111 is 111322132311.

It is not a de Polignac number, because 113231223111 - 2³ = 113231223103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113231223101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1438471 + ... + 1515143.

It is an arithmetic number, because the mean of its divisors is an integer number (5216898960).

Almost surely, 2^113231223111 is an apocalyptic number.

113231223111 is a deficient number, since it is larger than the sum of its proper divisors (53709543609).

113231223111 is a wasteful number, since it uses less digits than its factorization.

113231223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77975.

The product of its digits is 216, while the sum is 21.

Adding to 113231223111 its reverse (111322132311), we get a palindrome (224553355422).

The spelling of 113231223111 in words is "one hundred thirteen billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred eleven".