1311230223202 has 8 divisors (see below), whose sum is σ = 1966874344812. Its totient is φ = 655605441600.

The previous prime is 1311230223151. The next prime is 1311230223221. The reversal of 1311230223202 is 2023220321131.

It can be written as a sum of positive squares in 2 ways, for example, as 1186424171361 + 124806051841 = 1089231^2 + 353279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4664299 + ... + 4937422.

Almost surely, 2^{1311230223202} is an apocalyptic number.

1311230223202 is a deficient number, since it is larger than the sum of its proper divisors (655644121610).

1311230223202 is an equidigital number, since it uses as much as digits as its factorization.

1311230223202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670004.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1311230223202 its reverse (2023220321131), we get a palindrome (3334450544333).

The spelling of 1311230223202 in words is "one trillion, three hundred eleven billion, two hundred thirty million, two hundred twenty-three thousand, two hundred two".