111123230132120 has 64 divisors (see below), whose sum is σ = 250132698915840. Its totient is φ = 44430552432000.

The previous prime is 111123230132099. The next prime is 111123230132141. The reversal of 111123230132120 is 21231032321111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111123230132099) and next prime (111123230132141).

It is a super-2 number, since 2×111123230132120² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1065254765 + ... + 1065359075.

It is an arithmetic number, because the mean of its divisors is an integer number (3908323420560).

Almost surely, 2^{111123230132120} is an apocalyptic number.

111123230132120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111123230132120 is an abundant number, since it is smaller than the sum of its proper divisors (139009468783720).

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

111123230132120 is a wasteful number, since it uses less digits than its factorization.

111123230132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115296 (or 115292 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 111123230132120 its reverse (21231032321111), we get a palindrome (132354262453231).

The spelling of 111123230132120 in words is "one hundred eleven trillion, one hundred twenty-three billion, two hundred thirty million, one hundred thirty-two thousand, one hundred twenty".