2243312240245 has 4 divisors (see below), whose sum is σ = 2691974688300. Its totient is φ = 1794649792192.

The previous prime is 2243312240159. The next prime is 2243312240291. The reversal of 2243312240245 is 5420422133422.

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 1517641669476 + 725670570769 = 1231926^2 + 851863^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243312240245 - 2¹¹ = 2243312238197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2243312240245.

It is a congruent 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, 224331224020 + ... + 224331224029.

It is an arithmetic number, because the mean of its divisors is an integer number (672993672075).

Almost surely, 2^{2243312240245} is an apocalyptic number.

It is an amenable number.

2243312240245 is a deficient number, since it is larger than the sum of its proper divisors (448662448055).

2243312240245 is an equidigital number, since it uses as much as digits as its factorization.

2243312240245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448662448054.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 2243312240245 its reverse (5420422133422), we get a palindrome (7663734373667).

The spelling of 2243312240245 in words is "two trillion, two hundred forty-three billion, three hundred twelve million, two hundred forty thousand, two hundred forty-five".