121371628364 has 24 divisors (see below), whose sum is σ = 242751280128. Its totient is φ = 52014692880.

The previous prime is 121371628289. The next prime is 121371628369. The reversal of 121371628364 is 463826173121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121371628369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165349 + ... + 1265219.

It is an arithmetic number, because the mean of its divisors is an integer number (10114636672).

Almost surely, 2^121371628364 is an apocalyptic number.

121371628364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121371628364 is an abundant number, since it is smaller than the sum of its proper divisors (121379651764).

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

121371628364 is a wasteful number, since it uses less digits than its factorization.

121371628364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143285 (or 143283 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The spelling of 121371628364 in words is "one hundred twenty-one billion, three hundred seventy-one million, six hundred twenty-eight thousand, three hundred sixty-four".