102177030408721 has 16 divisors (see below), whose sum is σ = 105600804249600. Its totient is φ = 98761294967760.

The previous prime is 102177030408709. The next prime is 102177030408751. The reversal of 102177030408721 is 127804030771201.

It is a cyclic number.

It is not a de Polignac number, because 102177030408721 - 2¹¹ = 102177030406673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102177030408751) 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 in 15 ways as a sum of consecutive naturals, for example, 112349806 + ... + 113255608.

It is an arithmetic number, because the mean of its divisors is an integer number (6600050265600).

Almost surely, 2^{102177030408721} is an apocalyptic number.

It is an amenable number.

102177030408721 is a deficient number, since it is larger than the sum of its proper divisors (3423773840879).

102177030408721 is a wasteful number, since it uses less digits than its factorization.

102177030408721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910236.

The product of its (nonzero) digits is 131712, while the sum is 43.

The spelling of 102177030408721 in words is "one hundred two trillion, one hundred seventy-seven billion, thirty million, four hundred eight thousand, seven hundred twenty-one".