50243121007 has 2 divisors, whose sum is σ = 50243121008. Its totient is φ = 50243121006.

The previous prime is 50243120999. The next prime is 50243121023. The reversal of 50243121007 is 70012134205.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50243121007 - 2³ = 50243120999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50243121037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25121560503 + 25121560504.

It is an arithmetic number, because the mean of its divisors is an integer number (25121560504).

Almost surely, 2^50243121007 is an apocalyptic number.

50243121007 is a deficient number, since it is larger than the sum of its proper divisors (1).

50243121007 is an equidigital number, since it uses as much as digits as its factorization.

50243121007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The spelling of 50243121007 in words is "fifty billion, two hundred forty-three million, one hundred twenty-one thousand, seven".