101212663 has 2 divisors, whose sum is σ = 101212664. Its totient is φ = 101212662.

The previous prime is 101212651. The next prime is 101212687. The reversal of 101212663 is 366212101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101212663 - 2¹³ = 101204471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101212693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606331 + 50606332.

It is an arithmetic number, because the mean of its divisors is an integer number (50606332).

Almost surely, 2^101212663 is an apocalyptic number.

101212663 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212663 is an equidigital number, since it uses as much as digits as its factorization.

101212663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 101212663 is about 10060.4504372319. The cubic root of 101212663 is about 466.0275776197.

Adding to 101212663 its reverse (366212101), we get a palindrome (467424764).

The spelling of 101212663 in words is "one hundred one million, two hundred twelve thousand, six hundred sixty-three".