320231203311 has 8 divisors (see below), whose sum is σ = 426983775664. Its totient is φ = 213483049920.

The previous prime is 320231203307. The next prime is 320231203339. The reversal of 320231203311 is 113302132023.

320231203311 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320231203311 - 2² = 320231203307 is a prime.

It is a super-2 number, since 2×320231203311² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320231203361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931780 + ... + 1228281.

It is an arithmetic number, because the mean of its divisors is an integer number (53372971958).

Almost surely, 2^320231203311 is an apocalyptic number.

320231203311 is a deficient number, since it is larger than the sum of its proper divisors (106752572353).

320231203311 is a wasteful number, since it uses less digits than its factorization.

320231203311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209481.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 320231203311 its reverse (113302132023), we get a palindrome (433533335334).

The spelling of 320231203311 in words is "three hundred twenty billion, two hundred thirty-one million, two hundred three thousand, three hundred eleven".