20202011850187 has 2 divisors, whose sum is σ = 20202011850188. Its totient is φ = 20202011850186.

The previous prime is 20202011850103. The next prime is 20202011850217. The reversal of 20202011850187 is 78105811020202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20202011850187 - 2²³ = 20202003461579 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202011850487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101005925093 + 10101005925094.

It is an arithmetic number, because the mean of its divisors is an integer number (10101005925094).

Almost surely, 2^{20202011850187} is an apocalyptic number.

20202011850187 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202011850187 is an equidigital number, since it uses as much as digits as its factorization.

20202011850187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 37.

Adding to 20202011850187 its reverse (78105811020202), we get a palindrome (98307822870389).

The spelling of 20202011850187 in words is "twenty trillion, two hundred two billion, eleven million, eight hundred fifty thousand, one hundred eighty-seven".