3811213465311 has 24 divisors (see below), whose sum is σ = 5911421469744. Its totient is φ = 2177780411520.

The previous prime is 3811213465291. The next prime is 3811213465369. The reversal of 3811213465311 is 1135643121183.

It is not a de Polignac number, because 3811213465311 - 2¹⁴ = 3811213448927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3811213465311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3811213465711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5802501 + ... + 6425841.

It is an arithmetic number, because the mean of its divisors is an integer number (246309227906).

Almost surely, 2^{3811213465311} is an apocalyptic number.

3811213465311 is a deficient number, since it is larger than the sum of its proper divisors (2100208004433).

3811213465311 is a wasteful number, since it uses less digits than its factorization.

3811213465311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664951 (or 664944 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

Adding to 3811213465311 its reverse (1135643121183), we get a palindrome (4946856586494).

The spelling of 3811213465311 in words is "three trillion, eight hundred eleven billion, two hundred thirteen million, four hundred sixty-five thousand, three hundred eleven".