121340331998 has 32 divisors (see below), whose sum is σ = 193655024640. Its totient is φ = 56928876480.

The previous prime is 121340331971. The next prime is 121340332027. The reversal of 121340331998 is 899133043121.

121340331998 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199133 + ... + 531351.

It is an arithmetic number, because the mean of its divisors is an integer number (6051719520).

Almost surely, 2^121340331998 is an apocalyptic number.

121340331998 is a deficient number, since it is larger than the sum of its proper divisors (72314692642).

121340331998 is a wasteful number, since it uses less digits than its factorization.

121340331998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332432.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 121340331998 in words is "one hundred twenty-one billion, three hundred forty million, three hundred thirty-one thousand, nine hundred ninety-eight".