321231011311 has 8 divisors (see below), whose sum is σ = 372291876864. Its totient is φ = 271462826040.

The previous prime is 321231011293. The next prime is 321231011317. The reversal of 321231011311 is 113110132123.

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

It is not a de Polignac number, because 321231011311 - 2¹¹ = 321231009263 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 (321231011317) 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, 323169535 + ... + 323170528.

It is an arithmetic number, because the mean of its divisors is an integer number (46536484608).

Almost surely, 2^321231011311 is an apocalyptic number.

321231011311 is a deficient number, since it is larger than the sum of its proper divisors (51060865553).

321231011311 is an equidigital number, since it uses as much as digits as its factorization.

321231011311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646340141.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 321231011311 its reverse (113110132123), we get a palindrome (434341143434).

The spelling of 321231011311 in words is "three hundred twenty-one billion, two hundred thirty-one million, eleven thousand, three hundred eleven".