1323131141 has 4 divisors (see below), whose sum is σ = 1324544172. Its totient is φ = 1321718112.

The previous prime is 1323131129. The next prime is 1323131149. The reversal of 1323131141 is 1411313231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1411313231 = 6779 ⋅208189.

It can be written as a sum of positive squares in 2 ways, for example, as 163456225 + 1159674916 = 12785^2 + 34054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323131141 - 2¹⁴ = 1323114757 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 (1323131149) 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, 705110 + ... + 706983.

It is an arithmetic number, because the mean of its divisors is an integer number (331136043).

Almost surely, 2^1323131141 is an apocalyptic number.

It is an amenable number.

1323131141 is a deficient number, since it is larger than the sum of its proper divisors (1413031).

1323131141 is an equidigital number, since it uses as much as digits as its factorization.

1323131141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413030.

The product of its digits is 216, while the sum is 20.

The square root of 1323131141 is about 36374.8696355052. The cubic root of 1323131141 is about 1097.8279842960.

Adding to 1323131141 its reverse (1411313231), we get a palindrome (2734444372).

The spelling of 1323131141 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, one hundred forty-one".