1112123320020 has 72 divisors (see below), whose sum is σ = 3416142562560. Its totient is φ = 292812212160.

The previous prime is 1112123320019. The next prime is 1112123320027. The reversal of 1112123320020 is 200233212111.

1112123320020 is a `hidden beast` number, since 111 + 212 + 3 + 320 + 0 + 20 = 666.

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 = 1112123319975 and 1112123320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112123320027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39089976 + ... + 39118415.

It is an arithmetic number, because the mean of its divisors is an integer number (47446424480).

Almost surely, 2^{1112123320020} is an apocalyptic number.

1112123320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112123320020 is an abundant number, since it is smaller than the sum of its proper divisors (2304019242540).

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

1112123320020 is a wasteful number, since it uses less digits than its factorization.

1112123320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78208485 (or 78208480 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1112123320020 its reverse (200233212111), we get a palindrome (1312356532131).

The spelling of 1112123320020 in words is "one trillion, one hundred twelve billion, one hundred twenty-three million, three hundred twenty thousand, twenty".