202020001109987 has 2 divisors, whose sum is σ = 202020001109988. Its totient is φ = 202020001109986.

The previous prime is 202020001109929. The next prime is 202020001110007. The reversal of 202020001109987 is 789901100020202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202020001109987 - 2⁶ = 202020001109923 is a prime.

It is a super-2 number, since 2×202020001109987² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202020001109887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010000554993 + 101010000554994.

It is an arithmetic number, because the mean of its divisors is an integer number (101010000554994).

Almost surely, 2^{202020001109987} is an apocalyptic number.

202020001109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

202020001109987 is an equidigital number, since it uses as much as digits as its factorization.

202020001109987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 202020001109987 in words is "two hundred two trillion, twenty billion, one million, one hundred nine thousand, nine hundred eighty-seven".