1313554223505 has 16 divisors (see below), whose sum is σ = 2101722523200. Its totient is φ = 700550330688.

The previous prime is 1313554223453. The next prime is 1313554223507. The reversal of 1313554223505 is 5053224553131.

It is not a de Polignac number, because 1313554223505 - 2¹⁶ = 1313554157969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313554223507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204771 + ... + 1633719.

It is an arithmetic number, because the mean of its divisors is an integer number (131357657700).

Almost surely, 2^{1313554223505} is an apocalyptic number.

1313554223505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313554223505 is a deficient number, since it is larger than the sum of its proper divisors (788168299695).

1313554223505 is a wasteful number, since it uses less digits than its factorization.

1313554223505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490240.

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 1313554223505 its reverse (5053224553131), we get a palindrome (6366778776636).

The spelling of 1313554223505 in words is "one trillion, three hundred thirteen billion, five hundred fifty-four million, two hundred twenty-three thousand, five hundred five".