1311213002211 has 12 divisors (see below), whose sum is σ = 2164542098992. Its totient is φ = 749264572656.

The previous prime is 1311213002207. The next prime is 1311213002233. The reversal of 1311213002211 is 1122003121131.

1311213002211 is a `hidden beast` number, since 1 + 31 + 121 + 300 + 2 + 211 = 666.

It is not a de Polignac number, because 1311213002211 - 2² = 1311213002207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311213002111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10406452336 + ... + 10406452461.

Almost surely, 2^{1311213002211} is an apocalyptic number.

1311213002211 is a deficient number, since it is larger than the sum of its proper divisors (853329096781).

1311213002211 is a wasteful number, since it uses less digits than its factorization.

1311213002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812904810 (or 20812904807 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1311213002211 its reverse (1122003121131), we get a palindrome (2433216123342).

The spelling of 1311213002211 in words is "one trillion, three hundred eleven billion, two hundred thirteen million, two thousand, two hundred eleven".