1121155312000 has 128 divisors (see below), whose sum is σ = 2883593325600. Its totient is φ = 432997734400.

The previous prime is 1121155311979. The next prime is 1121155312049. The reversal of 1121155312000 is 2135511211.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744142 + ... + 1672141.

Almost surely, 2^{1121155312000} is an apocalyptic number.

1121155312000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121155312000 is an abundant number, since it is smaller than the sum of its proper divisors (1762438013600).

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

1121155312000 is an equidigital number, since it uses as much as digits as its factorization.

1121155312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416341 (or 2416319 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The spelling of 1121155312000 in words is "one trillion, one hundred twenty-one billion, one hundred fifty-five million, three hundred twelve thousand".