321203100000311 has 2 divisors, whose sum is σ = 321203100000312. Its totient is φ = 321203100000310.

The previous prime is 321203100000253. The next prime is 321203100000463. The reversal of 321203100000311 is 113000001302123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321203100000311 - 2³⁴ = 321185920131127 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321203100000311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321203100000511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160601550000155 + 160601550000156.

It is an arithmetic number, because the mean of its divisors is an integer number (160601550000156).

Almost surely, 2^{321203100000311} is an apocalyptic number.

321203100000311 is a deficient number, since it is larger than the sum of its proper divisors (1).

321203100000311 is an equidigital number, since it uses as much as digits as its factorization.

321203100000311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 321203100000311 its reverse (113000001302123), we get a palindrome (434203101302434).

The spelling of 321203100000311 in words is "three hundred twenty-one trillion, two hundred three billion, one hundred million, three hundred eleven", and thus it is an aban number.