102320161 has 12 divisors (see below), whose sum is σ = 109066048. Its totient is φ = 95971392.

The previous prime is 102320143. The next prime is 102320191. The reversal of 102320161 is 161023201.

It is not a de Polignac number, because 102320161 - 2⁵ = 102320129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102320131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140380 + ... + 141106.

Almost surely, 2^102320161 is an apocalyptic number.

It is an amenable number.

102320161 is a deficient number, since it is larger than the sum of its proper divisors (6745887).

102320161 is an equidigital number, since it uses as much as digits as its factorization.

102320161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 102320161 is about 10115.3428513323. The cubic root of 102320161 is about 467.7212176190.

Adding to 102320161 its reverse (161023201), we get a palindrome (263343362).

The spelling of 102320161 in words is "one hundred two million, three hundred twenty thousand, one hundred sixty-one".