1323113341997 has 4 divisors (see below), whose sum is σ = 1323119491260. Its totient is φ = 1323107192736.

The previous prime is 1323113341951. The next prime is 1323113342009. The reversal of 1323113341997 is 7991433113231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1227351563881 + 95761778116 = 1107859^2 + 309454^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323113341997 - 2⁶ = 1323113341933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323113341937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2739722 + ... + 3186267.

It is an arithmetic number, because the mean of its divisors is an integer number (330779872815).

Almost surely, 2^{1323113341997} is an apocalyptic number.

It is an amenable number.

1323113341997 is a deficient number, since it is larger than the sum of its proper divisors (6149263).

1323113341997 is an equidigital number, since it uses as much as digits as its factorization.

1323113341997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149262.

The product of its digits is 367416, while the sum is 47.

The spelling of 1323113341997 in words is "one trillion, three hundred twenty-three billion, one hundred thirteen million, three hundred forty-one thousand, nine hundred ninety-seven".