121992041 has 2 divisors, whose sum is σ = 121992042. Its totient is φ = 121992040.

The previous prime is 121992029. The next prime is 121992049. The reversal of 121992041 is 140299121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121992025 + 16 = 11045^2 + 4^2 .

It is an emirp because it is prime and its reverse (140299121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121992041 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121991995 and 121992013.

It is not a weakly prime, because it can be changed into another prime (121992049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60996020 + 60996021.

It is an arithmetic number, because the mean of its divisors is an integer number (60996021).

Almost surely, 2^121992041 is an apocalyptic number.

It is an amenable number.

121992041 is a deficient number, since it is larger than the sum of its proper divisors (1).

121992041 is an equidigital number, since it uses as much as digits as its factorization.

121992041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 121992041 is about 11045.0007243096. Note that the first 3 decimals coincide. The cubic root of 121992041 is about 495.9567808878.

The spelling of 121992041 in words is "one hundred twenty-one million, nine hundred ninety-two thousand, forty-one".