2313224155505 has 4 divisors (see below), whose sum is σ = 2775868986612. Its totient is φ = 1850579324400.

The previous prime is 2313224155471. The next prime is 2313224155537. The reversal of 2313224155505 is 5055514223132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 917005420816 + 1396218734689 = 957604^2 + 1181617^2 .

It is not a de Polignac number, because 2313224155505 - 2⁶ = 2313224155441 is a prime.

It is a super-2 number, since 2×2313224155505² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231322415546 + ... + 231322415555.

It is an arithmetic number, because the mean of its divisors is an integer number (693967246653).

Almost surely, 2^{2313224155505} is an apocalyptic number.

It is an amenable number.

2313224155505 is a deficient number, since it is larger than the sum of its proper divisors (462644831107).

2313224155505 is an equidigital number, since it uses as much as digits as its factorization.

2313224155505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462644831106.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 2313224155505 its reverse (5055514223132), we get a palindrome (7368738378637).

The spelling of 2313224155505 in words is "two trillion, three hundred thirteen billion, two hundred twenty-four million, one hundred fifty-five thousand, five hundred five".