20101011201263 has 2 divisors, whose sum is σ = 20101011201264. Its totient is φ = 20101011201262.

The previous prime is 20101011201197. The next prime is 20101011201281. The reversal of 20101011201263 is 36210211010102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20101011201263 - 2¹⁰ = 20101011200239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101011201463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050505600631 + 10050505600632.

It is an arithmetic number, because the mean of its divisors is an integer number (10050505600632).

Almost surely, 2^{20101011201263} is an apocalyptic number.

20101011201263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101011201263 is an equidigital number, since it uses as much as digits as its factorization.

20101011201263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20101011201263 its reverse (36210211010102), we get a palindrome (56311222211365).

The spelling of 20101011201263 in words is "twenty trillion, one hundred one billion, eleven million, two hundred one thousand, two hundred sixty-three".