320231421311 has 4 divisors (see below), whose sum is σ = 328041943824. Its totient is φ = 312420898800.

The previous prime is 320231421299. The next prime is 320231421373. The reversal of 320231421311 is 113124132023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113124132023 = 7 ⋅16160590289.

It is a cyclic number.

It is not a de Polignac number, because 320231421311 - 2¹⁸ = 320231159167 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 (320231421011) 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, 3905261195 + ... + 3905261276.

It is an arithmetic number, because the mean of its divisors is an integer number (82010485956).

Almost surely, 2^320231421311 is an apocalyptic number.

320231421311 is a deficient number, since it is larger than the sum of its proper divisors (7810522513).

320231421311 is an equidigital number, since it uses as much as digits as its factorization.

320231421311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810522512.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 320231421311 its reverse (113124132023), we get a palindrome (433355553334).

The spelling of 320231421311 in words is "three hundred twenty billion, two hundred thirty-one million, four hundred twenty-one thousand, three hundred eleven".