1311423022305 has 24 divisors (see below), whose sum is σ = 2479781715840. Its totient is φ = 635841465120.

The previous prime is 1311423022297. The next prime is 1311423022333. The reversal of 1311423022305 is 5032203241131.

1311423022305 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 423 + 0 + 2 + 230 + 5 = 666.

It is not a de Polignac number, because 1311423022305 - 2³ = 1311423022297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1324669225 + ... + 1324670214.

It is an arithmetic number, because the mean of its divisors is an integer number (103324238160).

Almost surely, 2^{1311423022305} is an apocalyptic number.

1311423022305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311423022305 is a deficient number, since it is larger than the sum of its proper divisors (1168358693535).

1311423022305 is a wasteful number, since it uses less digits than its factorization.

1311423022305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649339461 (or 2649339458 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1311423022305 its reverse (5032203241131), we get a palindrome (6343626263436).

The spelling of 1311423022305 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, twenty-two thousand, three hundred five".