323115225440243 has 4 divisors (see below), whose sum is σ = 323116438742760. Its totient is φ = 323114012137728.

The previous prime is 323115225440143. The next prime is 323115225440251. The reversal of 323115225440243 is 342044522511323.

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

It is a cyclic number.

It is not a de Polignac number, because 323115225440243 - 2³² = 323110930472947 is a prime.

It is a super-2 number, since 2×323115225440243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 323115225440243.

It is not an unprimeable number, because it can be changed into a prime (323115225440263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606251705 + ... + 606784442.

It is an arithmetic number, because the mean of its divisors is an integer number (80779109685690).

Almost surely, 2^{323115225440243} is an apocalyptic number.

323115225440243 is a deficient number, since it is larger than the sum of its proper divisors (1213302517).

323115225440243 is a wasteful number, since it uses less digits than its factorization.

323115225440243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213302516.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 323115225440243 its reverse (342044522511323), we get a palindrome (665159747951566).

The spelling of 323115225440243 in words is "three hundred twenty-three trillion, one hundred fifteen billion, two hundred twenty-five million, four hundred forty thousand, two hundred forty-three".