103861820171 has 2 divisors, whose sum is σ = 103861820172. Its totient is φ = 103861820170.

The previous prime is 103861820143. The next prime is 103861820197. The reversal of 103861820171 is 171028168301.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103861820171 - 2¹⁸ = 103861558027 is a prime.

It is not a weakly prime, because it can be changed into another prime (103861820771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51930910085 + 51930910086.

It is an arithmetic number, because the mean of its divisors is an integer number (51930910086).

Almost surely, 2^103861820171 is an apocalyptic number.

103861820171 is a deficient number, since it is larger than the sum of its proper divisors (1).

103861820171 is an equidigital number, since it uses as much as digits as its factorization.

103861820171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 38.

Adding to 103861820171 its reverse (171028168301), we get a palindrome (274889988472).

The spelling of 103861820171 in words is "one hundred three billion, eight hundred sixty-one million, eight hundred twenty thousand, one hundred seventy-one".