39999010010101 has 2 divisors, whose sum is σ = 39999010010102. Its totient is φ = 39999010010100.

The previous prime is 39999010010053. The next prime is 39999010010129. The reversal of 39999010010101 is 10101001099993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24187451869476 + 15811558140625 = 4918074^2 + 3976375^2 .

It is an emirp because it is prime and its reverse (10101001099993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39999010010101 - 2²³ = 39999001621493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39999010013101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19999505005050 + 19999505005051.

It is an arithmetic number, because the mean of its divisors is an integer number (19999505005051).

Almost surely, 2^{39999010010101} is an apocalyptic number.

It is an amenable number.

39999010010101 is a deficient number, since it is larger than the sum of its proper divisors (1).

39999010010101 is an equidigital number, since it uses as much as digits as its factorization.

39999010010101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19683, while the sum is 43.

The spelling of 39999010010101 in words is "thirty-nine trillion, nine hundred ninety-nine billion, ten million, ten thousand, one hundred one".