3121322224231 has 2 divisors, whose sum is σ = 3121322224232. Its totient is φ = 3121322224230.

The previous prime is 3121322224219. The next prime is 3121322224253. The reversal of 3121322224231 is 1324222231213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121322224231 - 2⁷ = 3121322224103 is a prime.

It is a super-2 number, since 2×3121322224231² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3121322224231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121322224201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560661112115 + 1560661112116.

It is an arithmetic number, because the mean of its divisors is an integer number (1560661112116).

Almost surely, 2^{3121322224231} is an apocalyptic number.

3121322224231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121322224231 is an equidigital number, since it uses as much as digits as its factorization.

3121322224231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

Adding to 3121322224231 its reverse (1324222231213), we get a palindrome (4445544455444).

The spelling of 3121322224231 in words is "three trillion, one hundred twenty-one billion, three hundred twenty-two million, two hundred twenty-four thousand, two hundred thirty-one".