355312122321 has 64 divisors (see below), whose sum is σ = 543633350400. Its totient is φ = 204807730176.

The previous prime is 355312122301. The next prime is 355312122367. The reversal of 355312122321 is 123221213553.

It is not a de Polignac number, because 355312122321 - 2⁹ = 355312121809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (355312122301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14508675 + ... + 14533143.

It is an arithmetic number, because the mean of its divisors is an integer number (8494271100).

Almost surely, 2^355312122321 is an apocalyptic number.

It is an amenable number.

355312122321 is a deficient number, since it is larger than the sum of its proper divisors (188321228079).

355312122321 is a wasteful number, since it uses less digits than its factorization.

355312122321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24898.

The product of its digits is 10800, while the sum is 30.

Adding to 355312122321 its reverse (123221213553), we get a palindrome (478533335874).

The spelling of 355312122321 in words is "three hundred fifty-five billion, three hundred twelve million, one hundred twenty-two thousand, three hundred twenty-one".