10020420287 has 2 divisors, whose sum is σ = 10020420288. Its totient is φ = 10020420286.

The previous prime is 10020420283. The next prime is 10020420331. The reversal of 10020420287 is 78202402001.

It is a weak prime.

It is an emirp because it is prime and its reverse (78202402001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10020420287 - 2² = 10020420283 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020420283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010210143 + 5010210144.

It is an arithmetic number, because the mean of its divisors is an integer number (5010210144).

Almost surely, 2^10020420287 is an apocalyptic number.

10020420287 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020420287 is an equidigital number, since it uses as much as digits as its factorization.

10020420287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 10020420287 its reverse (78202402001), we get a palindrome (88222822288).

The spelling of 10020420287 in words is "ten billion, twenty million, four hundred twenty thousand, two hundred eighty-seven".