20402143000163 has 2 divisors, whose sum is σ = 20402143000164. Its totient is φ = 20402143000162.

The previous prime is 20402143000123. The next prime is 20402143000219. The reversal of 20402143000163 is 36100034120402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20402143000163 - 2⁸ = 20402142999907 is a prime.

It is not a weakly prime, because it can be changed into another prime (20402143000123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201071500081 + 10201071500082.

It is an arithmetic number, because the mean of its divisors is an integer number (10201071500082).

Almost surely, 2^{20402143000163} is an apocalyptic number.

20402143000163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20402143000163 is an equidigital number, since it uses as much as digits as its factorization.

20402143000163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20402143000163 its reverse (36100034120402), we get a palindrome (56502177120565).

The spelling of 20402143000163 in words is "twenty trillion, four hundred two billion, one hundred forty-three million, one hundred sixty-three", and thus it is an aban number.