10020020121187 has 2 divisors, whose sum is σ = 10020020121188. Its totient is φ = 10020020121186.

The previous prime is 10020020121173. The next prime is 10020020121233. The reversal of 10020020121187 is 78112102002001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10020020121187 - 2¹¹ = 10020020119139 is a prime.

It is not a weakly prime, because it can be changed into another prime (10020020161187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010010060593 + 5010010060594.

It is an arithmetic number, because the mean of its divisors is an integer number (5010010060594).

Almost surely, 2^{10020020121187} is an apocalyptic number.

10020020121187 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020020121187 is an equidigital number, since it uses as much as digits as its factorization.

10020020121187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 10020020121187 its reverse (78112102002001), we get a palindrome (88132122123188).

The spelling of 10020020121187 in words is "ten trillion, twenty billion, twenty million, one hundred twenty-one thousand, one hundred eighty-seven".