111321120132 has 18 divisors (see below), whose sum is σ = 281395053758. Its totient is φ = 37107040032.

The previous prime is 111321120107. The next prime is 111321120161. The reversal of 111321120132 is 231021123111.

111321120132 is a `hidden beast` number, since 111 + 321 + 1 + 201 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 95837299776 + 15483820356 = 309576^2 + 124434^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1546126633 + ... + 1546126704.

Almost surely, 2^111321120132 is an apocalyptic number.

111321120132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111321120132 is an abundant number, since it is smaller than the sum of its proper divisors (170073933626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111321120132 is a wasteful number, since it uses less digits than its factorization.

111321120132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092253347 (or 3092253342 counting only the distinct ones).

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

Adding to 111321120132 its reverse (231021123111), we get a palindrome (342342243243).

The spelling of 111321120132 in words is "one hundred eleven billion, three hundred twenty-one million, one hundred twenty thousand, one hundred thirty-two".