121788400833 has 96 divisors (see below), whose sum is σ = 196790630400. Its totient is φ = 71964547200.

The previous prime is 121788400831. The next prime is 121788400859. The reversal of 121788400833 is 338004887121.

It is not a de Polignac number, because 121788400833 - 2¹ = 121788400831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121788400831) 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 95 ways as a sum of consecutive naturals, for example, 321341238 + ... + 321341616.

It is an arithmetic number, because the mean of its divisors is an integer number (2049902400).

Almost surely, 2^121788400833 is an apocalyptic number.

It is an amenable number.

121788400833 is a deficient number, since it is larger than the sum of its proper divisors (75002229567).

121788400833 is a wasteful number, since it uses less digits than its factorization.

121788400833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 121788400833 in words is "one hundred twenty-one billion, seven hundred eighty-eight million, four hundred thousand, eight hundred thirty-three".