3121322224243 has 4 divisors (see below), whose sum is σ = 3122022547800. Its totient is φ = 3120621900688.

The previous prime is 3121322224231. The next prime is 3121322224253. The reversal of 3121322224243 is 3424222231213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121322224243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121322224253) 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, 350155093 + ... + 350164006.

It is an arithmetic number, because the mean of its divisors is an integer number (780505636950).

Almost surely, 2^{3121322224243} is an apocalyptic number.

3121322224243 is a deficient number, since it is larger than the sum of its proper divisors (700323557).

3121322224243 is an equidigital number, since it uses as much as digits as its factorization.

3121322224243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700323556.

The product of its digits is 27648, while the sum is 31.

Adding to 3121322224243 its reverse (3424222231213), we get a palindrome (6545544455456).

The spelling of 3121322224243 in words is "three trillion, one hundred twenty-one billion, three hundred twenty-two million, two hundred twenty-four thousand, two hundred forty-three".