1311423315466 has 16 divisors (see below), whose sum is σ = 2149107419808. Its totient is φ = 595228730800.

The previous prime is 1311423315431. The next prime is 1311423315491. The reversal of 1311423315466 is 6645133241131.

It is a super-2 number, since 2×1311423315466² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43623445 + ... + 43653496.

It is an arithmetic number, because the mean of its divisors is an integer number (134319213738).

Almost surely, 2^{1311423315466} is an apocalyptic number.

1311423315466 is a deficient number, since it is larger than the sum of its proper divisors (837684104342).

1311423315466 is a wasteful number, since it uses less digits than its factorization.

1311423315466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87277637.

The product of its digits is 155520, while the sum is 40.

Adding to 1311423315466 its reverse (6645133241131), we get a palindrome (7956556556597).

The spelling of 1311423315466 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred fifteen thousand, four hundred sixty-six".