20101102163 has 2 divisors, whose sum is σ = 20101102164. Its totient is φ = 20101102162.

The previous prime is 20101102121. The next prime is 20101102207. The reversal of 20101102163 is 36120110102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20101102163 - 2¹² = 20101098067 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101102963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050551081 + 10050551082.

It is an arithmetic number, because the mean of its divisors is an integer number (10050551082).

Almost surely, 2^20101102163 is an apocalyptic number.

20101102163 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101102163 is an equidigital number, since it uses as much as digits as its factorization.

20101102163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20101102163 its reverse (36120110102), we get a palindrome (56221212265).

The spelling of 20101102163 in words is "twenty billion, one hundred one million, one hundred two thousand, one hundred sixty-three".