3111052351321 has 4 divisors (see below), whose sum is σ = 3154869990144. Its totient is φ = 3067234712500.

The previous prime is 3111052351273. The next prime is 3111052351339. The reversal of 3111052351321 is 1231532501113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111052351321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3111052351321.

It is not an unprimeable number, because it can be changed into a prime (3111052351391) 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, 21908819305 + ... + 21908819446.

It is an arithmetic number, because the mean of its divisors is an integer number (788717497536).

Almost surely, 2^{3111052351321} is an apocalyptic number.

It is an amenable number.

3111052351321 is a deficient number, since it is larger than the sum of its proper divisors (43817638823).

3111052351321 is an equidigital number, since it uses as much as digits as its factorization.

3111052351321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43817638822.

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 3111052351321 its reverse (1231532501113), we get a palindrome (4342584852434).

The spelling of 3111052351321 in words is "three trillion, one hundred eleven billion, fifty-two million, three hundred fifty-one thousand, three hundred twenty-one".