1121313204012 has 24 divisors (see below), whose sum is σ = 2770303210416. Its totient is φ = 351784534528.

The previous prime is 1121313204007. The next prime is 1121313204041. The reversal of 1121313204012 is 2104023131211.

It is a super-2 number, since 2×1121313204012² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121313204012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748316473 + ... + 2748316880.

It is an arithmetic number, because the mean of its divisors is an integer number (115429300434).

Almost surely, 2^{1121313204012} is an apocalyptic number.

1121313204012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121313204012 is an abundant number, since it is smaller than the sum of its proper divisors (1648990006404).

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

1121313204012 is a wasteful number, since it uses less digits than its factorization.

1121313204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496633377 (or 5496633375 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1121313204012 its reverse (2104023131211), we get a palindrome (3225336335223).

The spelling of 1121313204012 in words is "one trillion, one hundred twenty-one billion, three hundred thirteen million, two hundred four thousand, twelve".