121193983 has 2 divisors, whose sum is σ = 121193984. Its totient is φ = 121193982.

The previous prime is 121193977. The next prime is 121193993. The reversal of 121193983 is 389391121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121193983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121193953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60596991 + 60596992.

It is an arithmetic number, because the mean of its divisors is an integer number (60596992).

Almost surely, 2^121193983 is an apocalyptic number.

121193983 is a deficient number, since it is larger than the sum of its proper divisors (1).

121193983 is an equidigital number, since it uses as much as digits as its factorization.

121193983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 37.

The square root of 121193983 is about 11008.8138779798. The cubic root of 121193983 is about 494.8729163948.

The spelling of 121193983 in words is "one hundred twenty-one million, one hundred ninety-three thousand, nine hundred eighty-three".