121982371 has 8 divisors (see below), whose sum is σ = 141694304. Its totient is φ = 102841920.

The previous prime is 121982351. The next prime is 121982383. The reversal of 121982371 is 173289121.

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

It is a cyclic number.

It is not a de Polignac number, because 121982371 - 2¹⁷ = 121851299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121982321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142410 + ... + 143263.

It is an arithmetic number, because the mean of its divisors is an integer number (17711788).

Almost surely, 2^121982371 is an apocalyptic number.

121982371 is a deficient number, since it is larger than the sum of its proper divisors (19711933).

121982371 is an equidigital number, since it uses as much as digits as its factorization.

121982371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285741.

The product of its digits is 6048, while the sum is 34.

The square root of 121982371 is about 11044.5629610229. The cubic root of 121982371 is about 495.9436761290.

The spelling of 121982371 in words is "one hundred twenty-one million, nine hundred eighty-two thousand, three hundred seventy-one".