320030121211 has 4 divisors (see below), whose sum is σ = 320034900112. Its totient is φ = 320025342312.

The previous prime is 320030121181. The next prime is 320030121223. The reversal of 320030121211 is 112121030023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112121030023 = 137 ⋅818401679.

It is a cyclic number.

It is not a de Polignac number, because 320030121211 - 2⁹ = 320030120699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320030121011) 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, 2287551 + ... + 2423416.

It is an arithmetic number, because the mean of its divisors is an integer number (80008725028).

Almost surely, 2^320030121211 is an apocalyptic number.

320030121211 is a deficient number, since it is larger than the sum of its proper divisors (4778901).

320030121211 is an equidigital number, since it uses as much as digits as its factorization.

320030121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778900.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 320030121211 its reverse (112121030023), we get a palindrome (432151151234).

The spelling of 320030121211 in words is "three hundred twenty billion, thirty million, one hundred twenty-one thousand, two hundred eleven".