323111111203109 has 2 divisors, whose sum is σ = 323111111203110. Its totient is φ = 323111111203108.

The previous prime is 323111111202977. The next prime is 323111111203123. The reversal of 323111111203109 is 901302111111323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320138514532225 + 2972596670884 = 17892415^2 + 1724122^2 .

It is a cyclic number.

It is not a de Polignac number, because 323111111203109 - 2¹² = 323111111199013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323111111200109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161555555601554 + 161555555601555.

It is an arithmetic number, because the mean of its divisors is an integer number (161555555601555).

Almost surely, 2^{323111111203109} is an apocalyptic number.

It is an amenable number.

323111111203109 is a deficient number, since it is larger than the sum of its proper divisors (1).

323111111203109 is an equidigital number, since it uses as much as digits as its factorization.

323111111203109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 323111111203109 in words is "three hundred twenty-three trillion, one hundred eleven billion, one hundred eleven million, two hundred three thousand, one hundred nine".