1323442034381 has 2 divisors, whose sum is σ = 1323442034382. Its totient is φ = 1323442034380.

The previous prime is 1323442034371. The next prime is 1323442034449. The reversal of 1323442034381 is 1834302443231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841514510281 + 481927524100 = 917341^2 + 694210^2 .

It is an emirp because it is prime and its reverse (1834302443231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323442034381 is a prime.

It is a super-2 number, since 2×1323442034381² (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 (1323442034371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661721017190 + 661721017191.

It is an arithmetic number, because the mean of its divisors is an integer number (661721017191).

Almost surely, 2^{1323442034381} is an apocalyptic number.

It is an amenable number.

1323442034381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323442034381 is an equidigital number, since it uses as much as digits as its factorization.

1323442034381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 1323442034381 in words is "one trillion, three hundred twenty-three billion, four hundred forty-two million, thirty-four thousand, three hundred eighty-one".