121166980383 has 4 divisors (see below), whose sum is σ = 161555973848. Its totient is φ = 80777986920.

The previous prime is 121166980343. The next prime is 121166980391. The reversal of 121166980383 is 383089661121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121166980383 - 2¹⁴ = 121166963999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121166980313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20194496728 + ... + 20194496733.

It is an arithmetic number, because the mean of its divisors is an integer number (40388993462).

Almost surely, 2^121166980383 is an apocalyptic number.

121166980383 is a deficient number, since it is larger than the sum of its proper divisors (40388993465).

121166980383 is an equidigital number, since it uses as much as digits as its factorization.

121166980383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40388993464.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 121166980383 in words is "one hundred twenty-one billion, one hundred sixty-six million, nine hundred eighty thousand, three hundred eighty-three".