104175327821 has 2 divisors, whose sum is σ = 104175327822. Its totient is φ = 104175327820.

The previous prime is 104175327731. The next prime is 104175327833. The reversal of 104175327821 is 128723571401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100070362921 + 4104964900 = 316339^2 + 64070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104175327821 is a prime.

It is a super-2 number, since 2×104175327821² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104175327121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52087663910 + 52087663911.

It is an arithmetic number, because the mean of its divisors is an integer number (52087663911).

Almost surely, 2^104175327821 is an apocalyptic number.

It is an amenable number.

104175327821 is a deficient number, since it is larger than the sum of its proper divisors (1).

104175327821 is an equidigital number, since it uses as much as digits as its factorization.

104175327821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 104175327821 in words is "one hundred four billion, one hundred seventy-five million, three hundred twenty-seven thousand, eight hundred twenty-one".