1326130223245 has 32 divisors (see below), whose sum is σ = 1638062860896. Its totient is φ = 1029899059200.

The previous prime is 1326130223237. The next prime is 1326130223261. The reversal of 1326130223245 is 5423220316231.

It can be written as a sum of positive squares in 16 ways, for example, as 99312589321 + 1226817633924 = 315139^2 + 1107618^2 .

It is not a de Polignac number, because 1326130223245 - 2³ = 1326130223237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1326130223245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162491965 + ... + 162500125.

It is an arithmetic number, because the mean of its divisors is an integer number (51189464403).

Almost surely, 2^{1326130223245} is an apocalyptic number.

It is an amenable number.

1326130223245 is a deficient number, since it is larger than the sum of its proper divisors (311932637651).

1326130223245 is an equidigital number, since it uses as much as digits as its factorization.

1326130223245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10081.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 1326130223245 its reverse (5423220316231), we get a palindrome (6749350539476).

The spelling of 1326130223245 in words is "one trillion, three hundred twenty-six billion, one hundred thirty million, two hundred twenty-three thousand, two hundred forty-five".