3111020323321 has 4 divisors (see below), whose sum is σ = 3131899654500. Its totient is φ = 3090140992144.

The previous prime is 3111020323289. The next prime is 3111020323343. The reversal of 3111020323321 is 1233230201113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350388228096 + 2760632095225 = 591936^2 + 1661515^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111020323321 - 2⁵ = 3111020323289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3111020323292 and 3111020323301.

It is not an unprimeable number, because it can be changed into a prime (3111020326321) 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, 10439665366 + ... + 10439665663.

It is an arithmetic number, because the mean of its divisors is an integer number (782974913625).

Almost surely, 2^{3111020323321} is an apocalyptic number.

It is an amenable number.

3111020323321 is a deficient number, since it is larger than the sum of its proper divisors (20879331179).

3111020323321 is a wasteful number, since it uses less digits than its factorization.

3111020323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20879331178.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3111020323321 its reverse (1233230201113), we get a palindrome (4344250524434).

The spelling of 3111020323321 in words is "three trillion, one hundred eleven billion, twenty million, three hundred twenty-three thousand, three hundred twenty-one".