101329 has 4 divisors (see below), whose sum is σ = 102384. Its totient is φ = 100276.

The previous prime is 101323. The next prime is 101333. The reversal of 101329 is 923101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 923101 = 53 ⋅17417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367 + ... + 580.

It is an arithmetic number, because the mean of its divisors is an integer number (25596).

2¹⁰¹³²⁹ is an apocalyptic number.

It is an amenable number.

101329 is a deficient number, since it is larger than the sum of its proper divisors (1055).

101329 is an equidigital number, since it uses as much as digits as its factorization.

101329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 101329 is about 318.3221638529. The cubic root of 101329 is about 46.6206064808.

The spelling of 101329 in words is "one hundred one thousand, three hundred twenty-nine".