1121323021112 has 48 divisors (see below), whose sum is σ = 2449826370000. Its totient is φ = 479764626432.

The previous prime is 1121323021103. The next prime is 1121323021127. The reversal of 1121323021112 is 2111203231211.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2152937 + ... + 2622552.

It is an arithmetic number, because the mean of its divisors is an integer number (51038049375).

Almost surely, 2^{1121323021112} is an apocalyptic number.

It is an amenable number.

1121323021112 is an abundant number, since it is smaller than the sum of its proper divisors (1328503348888).

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

1121323021112 is a wasteful number, since it uses less digits than its factorization.

1121323021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776108 (or 4776097 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1121323021112 its reverse (2111203231211), we get a palindrome (3232526252323).

The spelling of 1121323021112 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-three million, twenty-one thousand, one hundred twelve".