121112199983 has 2 divisors, whose sum is σ = 121112199984. Its totient is φ = 121112199982.

The previous prime is 121112199979. The next prime is 121112200169. The reversal of 121112199983 is 389991211121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121112199983 - 2² = 121112199979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121112199683) by changing a digit.

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 as a sum of consecutive naturals, namely, 60556099991 + 60556099992.

It is an arithmetic number, because the mean of its divisors is an integer number (60556099992).

Almost surely, 2^121112199983 is an apocalyptic number.

121112199983 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112199983 is an equidigital number, since it uses as much as digits as its factorization.

121112199983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 47.

The spelling of 121112199983 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred ninety-nine thousand, nine hundred eighty-three".