1002020112187 has 2 divisors, whose sum is σ = 1002020112188. Its totient is φ = 1002020112186.

The previous prime is 1002020112151. The next prime is 1002020112239. The reversal of 1002020112187 is 7812110202001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002020112187 - 2³⁵ = 967660373819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002020112887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501010056093 + 501010056094.

It is an arithmetic number, because the mean of its divisors is an integer number (501010056094).

Almost surely, 2^{1002020112187} is an apocalyptic number.

1002020112187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002020112187 is an equidigital number, since it uses as much as digits as its factorization.

1002020112187 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 1002020112187 its reverse (7812110202001), we get a palindrome (8814130314188).

The spelling of 1002020112187 in words is "one trillion, two billion, twenty million, one hundred twelve thousand, one hundred eighty-seven".