321023111311 has 8 divisors (see below), whose sum is σ = 379534713120. Its totient is φ = 265674298848.

The previous prime is 321023111249. The next prime is 321023111399. The reversal of 321023111311 is 113111320123.

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

It is not a de Polignac number, because 321023111311 - 2¹¹ = 321023109263 is a prime.

It is a super-2 number, since 2×321023111311² (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 (321023121311) 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, 790697116 + ... + 790697521.

It is an arithmetic number, because the mean of its divisors is an integer number (47441839140).

Almost surely, 2^321023111311 is an apocalyptic number.

321023111311 is a deficient number, since it is larger than the sum of its proper divisors (58511601809).

321023111311 is a wasteful number, since it uses less digits than its factorization.

321023111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581394673.

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

Adding to 321023111311 its reverse (113111320123), we get a palindrome (434134431434).

It can be divided in two parts, 32102 and 3111311, that added together give a palindrome (3143413).

The spelling of 321023111311 in words is "three hundred twenty-one billion, twenty-three million, one hundred eleven thousand, three hundred eleven".