121184728373 has 16 divisors (see below), whose sum is σ = 130934016000. Its totient is φ = 111914010432.

The previous prime is 121184728367. The next prime is 121184728387. The reversal of 121184728373 is 373827481121.

It is a de Polignac number, because none of the positive numbers 2^k-121184728373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121184728073) 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 15 ways as a sum of consecutive naturals, for example, 893813 + ... + 1020426.

It is an arithmetic number, because the mean of its divisors is an integer number (8183376000).

Almost surely, 2^121184728373 is an apocalyptic number.

It is an amenable number.

121184728373 is a deficient number, since it is larger than the sum of its proper divisors (9749287627).

121184728373 is a wasteful number, since it uses less digits than its factorization.

121184728373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914364.

The product of its digits is 451584, while the sum is 47.

The spelling of 121184728373 in words is "one hundred twenty-one billion, one hundred eighty-four million, seven hundred twenty-eight thousand, three hundred seventy-three".