111231132111 has 48 divisors (see below), whose sum is σ = 176199304320. Its totient is φ = 67057623360.

The previous prime is 111231132101. The next prime is 111231132139.

111231132111 is a `hidden beast` number, since 11 + 12 + 311 + 321 + 11 = 666.

111231132111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111231132111 - 2⁵ = 111231132079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231132101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15214725 + ... + 15222033.

It is an arithmetic number, because the mean of its divisors is an integer number (3670818840).

Almost surely, 2^111231132111 is an apocalyptic number.

111231132111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111231132111 is a deficient number, since it is larger than the sum of its proper divisors (64968172209).

111231132111 is a wasteful number, since it uses less digits than its factorization.

111231132111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116 (or 8113 counting only the distinct ones).

The product of its digits is 36, while the sum is 18.

It can be divided in two parts, 111231 and 132111, that added together give a palindrome (243342).

The spelling of 111231132111 in words is "one hundred eleven billion, two hundred thirty-one million, one hundred thirty-two thousand, one hundred eleven".