1121885791332 has 48 divisors (see below), whose sum is σ = 2629495075200. Its totient is φ = 372285188352.

The previous prime is 1121885791253. The next prime is 1121885791333. The reversal of 1121885791332 is 2331975881211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1121885791333) 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 15 ways as a sum of consecutive naturals, for example, 2366913 + ... + 2801079.

It is an arithmetic number, because the mean of its divisors is an integer number (54781147400).

Almost surely, 2^{1121885791332} is an apocalyptic number.

1121885791332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121885791332 is an abundant number, since it is smaller than the sum of its proper divisors (1507609283868).

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

1121885791332 is a wasteful number, since it uses less digits than its factorization.

1121885791332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435140 (or 435138 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The spelling of 1121885791332 in words is "one trillion, one hundred twenty-one billion, eight hundred eighty-five million, seven hundred ninety-one thousand, three hundred thirty-two".