20202011850487 has 2 divisors, whose sum is σ = 20202011850488. Its totient is φ = 20202011850486.

The previous prime is 20202011850463. The next prime is 20202011850491. The reversal of 20202011850487 is 78405811020202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20202011850487 - 2⁷ = 20202011850359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202011850187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101005925243 + 10101005925244.

It is an arithmetic number, because the mean of its divisors is an integer number (10101005925244).

Almost surely, 2^{20202011850487} is an apocalyptic number.

20202011850487 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202011850487 is an equidigital number, since it uses as much as digits as its factorization.

20202011850487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 40.

Adding to 20202011850487 its reverse (78405811020202), we get a palindrome (98607822870689).

The spelling of 20202011850487 in words is "twenty trillion, two hundred two billion, eleven million, eight hundred fifty thousand, four hundred eighty-seven".