1191140812012 has 12 divisors (see below), whose sum is σ = 2084685946056. Its totient is φ = 595516256000.

The previous prime is 1191140811983. The next prime is 1191140812019. The reversal of 1191140812012 is 2102180411911.

It is not an unprimeable number, because it can be changed into a prime (1191140812019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13487989 + ... + 13576012.

It is an arithmetic number, because the mean of its divisors is an integer number (173723828838).

Almost surely, 2^{1191140812012} is an apocalyptic number.

It is an amenable number.

1191140812012 is a deficient number, since it is larger than the sum of its proper divisors (893545134044).

1191140812012 is a wasteful number, since it uses less digits than its factorization.

1191140812012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27075008 (or 27075006 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 31.

The spelling of 1191140812012 in words is "one trillion, one hundred ninety-one billion, one hundred forty million, eight hundred twelve thousand, twelve".