1181252103164 has 12 divisors (see below), whose sum is σ = 2362504206384. Its totient is φ = 506250901344.

The previous prime is 1181252103113. The next prime is 1181252103181. The reversal of 1181252103164 is 4613012521811.

1181252103164 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 21093787529 + ... + 21093787584.

It is an arithmetic number, because the mean of its divisors is an integer number (196875350532).

Almost surely, 2^{1181252103164} is an apocalyptic number.

1181252103164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1181252103164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1181252103164 is a wasteful number, since it uses less digits than its factorization.

1181252103164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42187575124 (or 42187575122 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

Adding to 1181252103164 its reverse (4613012521811), we get a palindrome (5794264624975).

The spelling of 1181252103164 in words is "one trillion, one hundred eighty-one billion, two hundred fifty-two million, one hundred three thousand, one hundred sixty-four".