1121203232320 has 112 divisors (see below), whose sum is σ = 2684405543040. Its totient is φ = 446043303936.

The previous prime is 1121203232311. The next prime is 1121203232327. The reversal of 1121203232320 is 232323021211.

It is a junction number, because it is equal to n+sod(n) for n = 1121203232291 and 1121203232300.

It is not an unprimeable number, because it can be changed into a prime (1121203232327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68512459 + ... + 68528821.

Almost surely, 2^{1121203232320} is an apocalyptic number.

1121203232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121203232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342202771520).

1121203232320 is an abundant number, since it is smaller than the sum of its proper divisors (1563202310720).

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

1121203232320 is a wasteful number, since it uses less digits than its factorization.

1121203232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532 (or 17522 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1121203232320 its reverse (232323021211), we get a palindrome (1353526253531).

The spelling of 1121203232320 in words is "one trillion, one hundred twenty-one billion, two hundred three million, two hundred thirty-two thousand, three hundred twenty".