323155605361 has 4 divisors (see below), whose sum is σ = 323158062592. Its totient is φ = 323153148132.

The previous prime is 323155605347. The next prime is 323155605371. The reversal of 323155605361 is 163506551323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163506551323 = 13109 ⋅12472847.

It is a cyclic number.

It is not a de Polignac number, because 323155605361 - 2¹³ = 323155597169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323155605371) 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, 1019481 + ... + 1298326.

It is an arithmetic number, because the mean of its divisors is an integer number (80789515648).

Almost surely, 2^323155605361 is an apocalyptic number.

It is an amenable number.

323155605361 is a deficient number, since it is larger than the sum of its proper divisors (2457231).

323155605361 is a wasteful number, since it uses less digits than its factorization.

323155605361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457230.

The product of its (nonzero) digits is 243000, while the sum is 40.

The spelling of 323155605361 in words is "three hundred twenty-three billion, one hundred fifty-five million, six hundred five thousand, three hundred sixty-one".