111321123444 has 48 divisors (see below), whose sum is σ = 296410609600. Its totient is φ = 36104146848.

The previous prime is 111321123421. The next prime is 111321123451. The reversal of 111321123444 is 444321123111.

It is a happy number.

111321123444 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 211 + 2 + 3 + 444 = 666.

It is a super-2 number, since 2×111321123444² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13925074 + ... + 13933065.

Almost surely, 2^111321123444 is an apocalyptic number.

It is an amenable number.

111321123444 is an abundant number, since it is smaller than the sum of its proper divisors (185089486156).

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

111321123444 is a wasteful number, since it uses less digits than its factorization.

111321123444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27858189 (or 27858181 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 111321123444 its reverse (444321123111), we get a palindrome (555642246555).

The spelling of 111321123444 in words is "one hundred eleven billion, three hundred twenty-one million, one hundred twenty-three thousand, four hundred forty-four".