1121203233000 has 192 divisors, whose sum is σ = 3810609850320. Its totient is φ = 297335232000.

The previous prime is 1121203232969. The next prime is 1121203233041. The reversal of 1121203233000 is 3323021211.

1121203233000 is a `hidden beast` number, since 1 + 1 + 21 + 20 + 323 + 300 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 288156387204 + 833046845796 = 536802^2 + 912714^2 .

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

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1284862 + ... + 1973138.

Almost surely, 2^{1121203233000} is an apocalyptic number.

1121203233000 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 1121203233000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905304925160).

1121203233000 is an abundant number, since it is smaller than the sum of its proper divisors (2689406617320).

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

1121203233000 is a wasteful number, since it uses less digits than its factorization.

1121203233000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688485 (or 688468 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1121203233000 its reverse (3323021211), we get a palindrome (1124526254211).

The spelling of 1121203233000 in words is "one trillion, one hundred twenty-one billion, two hundred three million, two hundred thirty-three thousand".