320142101 has 4 divisors (see below), whose sum is σ = 326182572. Its totient is φ = 314101632.

The previous prime is 320142089. The next prime is 320142127. The reversal of 320142101 is 101241023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101241023 = 13 ⋅7787771.

It can be written as a sum of positive squares in 2 ways, for example, as 131079601 + 189062500 = 11449^2 + 13750^2 .

It is a cyclic number.

It is not a de Polignac number, because 320142101 - 2¹⁰ = 320141077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320142131) 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, 3020156 + ... + 3020261.

It is an arithmetic number, because the mean of its divisors is an integer number (81545643).

Almost surely, 2^320142101 is an apocalyptic number.

It is an amenable number.

320142101 is a deficient number, since it is larger than the sum of its proper divisors (6040471).

320142101 is an equidigital number, since it uses as much as digits as its factorization.

320142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040470.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 320142101 is about 17892.5152228523. The cubic root of 320142101 is about 684.0916092262.

Adding to 320142101 its reverse (101241023), we get a palindrome (421383124).

The spelling of 320142101 in words is "three hundred twenty million, one hundred forty-two thousand, one hundred one".