102126538573 has 2 divisors, whose sum is σ = 102126538574. Its totient is φ = 102126538572.

The previous prime is 102126538543. The next prime is 102126538637. The reversal of 102126538573 is 375835621201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64832362884 + 37294175689 = 254622^2 + 193117^2 .

It is a cyclic number.

It is not a de Polignac number, because 102126538573 - 2¹³ = 102126530381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102126538523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51063269286 + 51063269287.

It is an arithmetic number, because the mean of its divisors is an integer number (51063269287).

Almost surely, 2^102126538573 is an apocalyptic number.

It is an amenable number.

102126538573 is a deficient number, since it is larger than the sum of its proper divisors (1).

102126538573 is an equidigital number, since it uses as much as digits as its factorization.

102126538573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 102126538573 in words is "one hundred two billion, one hundred twenty-six million, five hundred thirty-eight thousand, five hundred seventy-three".