355235121223 has 4 divisors (see below), whose sum is σ = 355268371840. Its totient is φ = 355201870608.

The previous prime is 355235121203. The next prime is 355235121239. The reversal of 355235121223 is 322121532553.

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 355235121223 - 2⁵ = 355235121191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355235121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16609278 + ... + 16630651.

It is an arithmetic number, because the mean of its divisors is an integer number (88817092960).

Almost surely, 2^355235121223 is an apocalyptic number.

355235121223 is a deficient number, since it is larger than the sum of its proper divisors (33250617).

355235121223 is a wasteful number, since it uses less digits than its factorization.

355235121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33250616.

The product of its digits is 54000, while the sum is 34.

Adding to 355235121223 its reverse (322121532553), we get a palindrome (677356653776).

The spelling of 355235121223 in words is "three hundred fifty-five billion, two hundred thirty-five million, one hundred twenty-one thousand, two hundred twenty-three".