103327805821 has 2 divisors, whose sum is σ = 103327805822. Its totient is φ = 103327805820.

The previous prime is 103327805741. The next prime is 103327805897. The reversal of 103327805821 is 128508723301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103224051225 + 103754596 = 321285^2 + 10186^2 .

It is a cyclic number.

It is not a de Polignac number, because 103327805821 - 2²³ = 103319417213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103327805921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51663902910 + 51663902911.

It is an arithmetic number, because the mean of its divisors is an integer number (51663902911).

Almost surely, 2^103327805821 is an apocalyptic number.

It is an amenable number.

103327805821 is a deficient number, since it is larger than the sum of its proper divisors (1).

103327805821 is an equidigital number, since it uses as much as digits as its factorization.

103327805821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 103327805821 in words is "one hundred three billion, three hundred twenty-seven million, eight hundred five thousand, eight hundred twenty-one".