101032321 has 4 divisors (see below), whose sum is σ = 108804052. Its totient is φ = 93260592.

The previous prime is 101032319. The next prime is 101032381. The reversal of 101032321 is 123230101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123230101 = 5171 ⋅23831.

It can be written as a sum of positive squares in 2 ways, for example, as 29866225 + 71166096 = 5465^2 + 8436^2 .

It is a cyclic number.

It is not a de Polignac number, because 101032321 - 2¹ = 101032319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 7771717 = 101032321 / (1 + 0 + 1 + 0 + 3 + 2 + 3 + 2 + 1).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101032301) 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, 3885846 + ... + 3885871.

It is an arithmetic number, because the mean of its divisors is an integer number (27201013).

Almost surely, 2^101032321 is an apocalyptic number.

It is an amenable number.

101032321 is a deficient number, since it is larger than the sum of its proper divisors (7771731).

101032321 is an equidigital number, since it uses as much as digits as its factorization.

101032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771730.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 101032321 is about 10051.4835223463. The cubic root of 101032321 is about 465.7506217874.

Adding to 101032321 its reverse (123230101), we get a palindrome (224262422).

The spelling of 101032321 in words is "one hundred one million, thirty-two thousand, three hundred twenty-one".