320124213121 has 4 divisors (see below), whose sum is σ = 320231965744. Its totient is φ = 320016460500.

The previous prime is 320124213103. The next prime is 320124213131. The reversal of 320124213121 is 121312421023.

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 an emirpimes, since its reverse is a distinct semiprime: 121312421023 = 631 ⋅192254233.

It is a cyclic number.

It is not a de Polignac number, because 320124213121 - 2²⁷ = 319989995393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320124213092 and 320124213101.

It is not an unprimeable number, because it can be changed into a prime (320124213131) 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, 53871855 + ... + 53877796.

It is an arithmetic number, because the mean of its divisors is an integer number (80057991436).

Almost surely, 2^320124213121 is an apocalyptic number.

It is an amenable number.

320124213121 is a deficient number, since it is larger than the sum of its proper divisors (107752623).

320124213121 is a wasteful number, since it uses less digits than its factorization.

320124213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107752622.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 320124213121 its reverse (121312421023), we get a palindrome (441436634144).

The spelling of 320124213121 in words is "three hundred twenty billion, one hundred twenty-four million, two hundred thirteen thousand, one hundred twenty-one".