320421140101 has 4 divisors (see below), whose sum is σ = 320485629100. Its totient is φ = 320356651104.

The previous prime is 320421140087. The next prime is 320421140107. The reversal of 320421140101 is 101041124023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101041124023 = 7 ⋅14434446289.

It can be written as a sum of positive squares in 2 ways, for example, as 88096176100 + 232324964001 = 296810^2 + 482001^2 .

It is a cyclic number.

It is not a de Polignac number, because 320421140101 - 2¹¹ = 320421138053 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 (320421140107) 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, 32237046 + ... + 32246983.

It is an arithmetic number, because the mean of its divisors is an integer number (80121407275).

Almost surely, 2^320421140101 is an apocalyptic number.

It is an amenable number.

320421140101 is a deficient number, since it is larger than the sum of its proper divisors (64488999).

320421140101 is an equidigital number, since it uses as much as digits as its factorization.

320421140101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64488998.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 320421140101 its reverse (101041124023), we get a palindrome (421462264124).

The spelling of 320421140101 in words is "three hundred twenty billion, four hundred twenty-one million, one hundred forty thousand, one hundred one".