111004144020 has 216 divisors, whose sum is σ = 422978355072. Its totient is φ = 23065764480.

The previous prime is 111004144019. The next prime is 111004144033. The reversal of 111004144020 is 20441400111.

It is a super-2 number, since 2×111004144020² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 111004143984 and 111004144002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 211584 + ... + 516503.

Almost surely, 2^111004144020 is an apocalyptic number.

111004144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111004144020 is an abundant number, since it is smaller than the sum of its proper divisors (311974211052).

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

111004144020 is a wasteful number, since it uses less digits than its factorization.

111004144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728131 (or 728115 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111004144020 its reverse (20441400111), we get a palindrome (131445544131).

The spelling of 111004144020 in words is "one hundred eleven billion, four million, one hundred forty-four thousand, twenty".