1223310318101 has 2 divisors, whose sum is σ = 1223310318102. Its totient is φ = 1223310318100.

The previous prime is 1223310318067. The next prime is 1223310318127. The reversal of 1223310318101 is 1018130133221.

It is an a-pointer prime, because the next prime (1223310318127) can be obtained adding 1223310318101 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184668980625 + 38641337476 = 1088425^2 + 196574^2 .

It is an emirp because it is prime and its reverse (1018130133221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223310318101 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 (1223310318401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611655159050 + 611655159051.

It is an arithmetic number, because the mean of its divisors is an integer number (611655159051).

Almost surely, 2^{1223310318101} is an apocalyptic number.

It is an amenable number.

1223310318101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223310318101 is an equidigital number, since it uses as much as digits as its factorization.

1223310318101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1223310318101 in words is "one trillion, two hundred twenty-three billion, three hundred ten million, three hundred eighteen thousand, one hundred one".