121113201982 has 4 divisors (see below), whose sum is σ = 181669802976. Its totient is φ = 60556600990.

The previous prime is 121113201959. The next prime is 121113202009. The reversal of 121113201982 is 289102311121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30278300494 + ... + 30278300497.

It is an arithmetic number, because the mean of its divisors is an integer number (45417450744).

Almost surely, 2^121113201982 is an apocalyptic number.

121113201982 is a deficient number, since it is larger than the sum of its proper divisors (60556600994).

121113201982 is an equidigital number, since it uses as much as digits as its factorization.

121113201982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60556600993.

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 121113201982 in words is "one hundred twenty-one billion, one hundred thirteen million, two hundred one thousand, nine hundred eighty-two".