1312302331211 has 4 divisors (see below), whose sum is σ = 1313430709272. Its totient is φ = 1311173953152.

The previous prime is 1312302331189. The next prime is 1312302331217. The reversal of 1312302331211 is 1121332032131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312302331211 - 2²² = 1312298136907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312302331217) by changing a digit.

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, 564187286 + ... + 564189611.

It is an arithmetic number, because the mean of its divisors is an integer number (328357677318).

Almost surely, 2^{1312302331211} is an apocalyptic number.

1312302331211 is a deficient number, since it is larger than the sum of its proper divisors (1128378061).

1312302331211 is a wasteful number, since it uses less digits than its factorization.

1312302331211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128378060.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1312302331211 its reverse (1121332032131), we get a palindrome (2433634363342).

The spelling of 1312302331211 in words is "one trillion, three hundred twelve billion, three hundred two million, three hundred thirty-one thousand, two hundred eleven".