1323111012373 has 2 divisors, whose sum is σ = 1323111012374. Its totient is φ = 1323111012372.

The previous prime is 1323111012331. The next prime is 1323111012403. The reversal of 1323111012373 is 3732101113231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1302606777124 + 20504235249 = 1141318^2 + 143193^2 .

It is an emirp because it is prime and its reverse (3732101113231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323111012373 is a prime.

It is a super-2 number, since 2×1323111012373² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323111012323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661555506186 + 661555506187.

It is an arithmetic number, because the mean of its divisors is an integer number (661555506187).

Almost surely, 2^{1323111012373} is an apocalyptic number.

It is an amenable number.

1323111012373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323111012373 is an equidigital number, since it uses as much as digits as its factorization.

1323111012373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The spelling of 1323111012373 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, twelve thousand, three hundred seventy-three".