2312213021329 has 2 divisors, whose sum is σ = 2312213021330. Its totient is φ = 2312213021328.

The previous prime is 2312213021309. The next prime is 2312213021369. The reversal of 2312213021329 is 9231203122132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1880537740929 + 431675280400 = 1371327^2 + 657020^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312213021329 - 2⁷ = 2312213021201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2312213021329.

It is not a weakly prime, because it can be changed into another prime (2312213021309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156106510664 + 1156106510665.

It is an arithmetic number, because the mean of its divisors is an integer number (1156106510665).

Almost surely, 2^{2312213021329} is an apocalyptic number.

It is an amenable number.

2312213021329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312213021329 is an equidigital number, since it uses as much as digits as its factorization.

2312213021329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 2312213021329 in words is "two trillion, three hundred twelve billion, two hundred thirteen million, twenty-one thousand, three hundred twenty-nine".