1121230113012 has 36 divisors (see below), whose sum is σ = 2834583846276. Its totient is φ = 373695465600.

The previous prime is 1121230113011. The next prime is 1121230113019. The reversal of 1121230113012 is 2103110321211.

1121230113012 is a `hidden beast` number, since 1 + 121 + 230 + 11 + 301 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119941698276 + 1001288414736 = 346326^2 + 1000644^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121230113011) 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 11 ways as a sum of consecutive naturals, for example, 1710739 + ... + 2273562.

Almost surely, 2^{1121230113012} is an apocalyptic number.

1121230113012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121230113012 is an abundant number, since it is smaller than the sum of its proper divisors (1713353733264).

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

1121230113012 is a wasteful number, since it uses less digits than its factorization.

1121230113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992128 (or 3992123 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121230113012 its reverse (2103110321211), we get a palindrome (3224340434223).

The spelling of 1121230113012 in words is "one trillion, one hundred twenty-one billion, two hundred thirty million, one hundred thirteen thousand, twelve".