121397421358 has 8 divisors (see below), whose sum is σ = 182112580728. Its totient is φ = 60693227784.

The previous prime is 121397421317. The next prime is 121397421371. The reversal of 121397421358 is 853124793121.

121397421358 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2713716 + ... + 2758087.

It is an arithmetic number, because the mean of its divisors is an integer number (22764072591).

Almost surely, 2^121397421358 is an apocalyptic number.

121397421358 is a deficient number, since it is larger than the sum of its proper divisors (60715159370).

121397421358 is a wasteful number, since it uses less digits than its factorization.

121397421358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482898.

The product of its digits is 362880, while the sum is 46.

The spelling of 121397421358 in words is "one hundred twenty-one billion, three hundred ninety-seven million, four hundred twenty-one thousand, three hundred fifty-eight".