102020605205051 has 4 divisors (see below), whose sum is σ = 109868344066992. Its totient is φ = 94172866343112.

The previous prime is 102020605204961. The next prime is 102020605205069. The reversal of 102020605205051 is 150502506020201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102020605205051 - 2¹⁰ = 102020605204027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020605201051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3923869430951 + ... + 3923869430976.

It is an arithmetic number, because the mean of its divisors is an integer number (27467086016748).

Almost surely, 2^{102020605205051} is an apocalyptic number.

102020605205051 is a deficient number, since it is larger than the sum of its proper divisors (7847738861941).

102020605205051 is an equidigital number, since it uses as much as digits as its factorization.

102020605205051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847738861940.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 102020605205051 in words is "one hundred two trillion, twenty billion, six hundred five million, two hundred five thousand, fifty-one".