1312301232213 has 4 divisors (see below), whose sum is σ = 1749734976288. Its totient is φ = 874867488140.

The previous prime is 1312301232181. The next prime is 1312301232223. The reversal of 1312301232213 is 3122321032131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1312301232213 - 2⁵ = 1312301232181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312301232223) 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, 218716872033 + ... + 218716872038.

It is an arithmetic number, because the mean of its divisors is an integer number (437433744072).

Almost surely, 2^{1312301232213} is an apocalyptic number.

It is an amenable number.

1312301232213 is a deficient number, since it is larger than the sum of its proper divisors (437433744075).

1312301232213 is an equidigital number, since it uses as much as digits as its factorization.

1312301232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437433744074.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1312301232213 its reverse (3122321032131), we get a palindrome (4434622264344).

The spelling of 1312301232213 in words is "one trillion, three hundred twelve billion, three hundred one million, two hundred thirty-two thousand, two hundred thirteen".