342323331221 has 2 divisors, whose sum is σ = 342323331222. Its totient is φ = 342323331220.

The previous prime is 342323331211. The next prime is 342323331241. The reversal of 342323331221 is 122133323243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342283502500 + 39828721 = 585050^2 + 6311^2 .

It is an emirp because it is prime and its reverse (122133323243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342323331221 - 2²² = 342319136917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342323331211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171161665610 + 171161665611.

It is an arithmetic number, because the mean of its divisors is an integer number (171161665611).

Almost surely, 2^342323331221 is an apocalyptic number.

It is an amenable number.

342323331221 is a deficient number, since it is larger than the sum of its proper divisors (1).

342323331221 is an equidigital number, since it uses as much as digits as its factorization.

342323331221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 29.

Adding to 342323331221 its reverse (122133323243), we get a palindrome (464456654464).

The spelling of 342323331221 in words is "three hundred forty-two billion, three hundred twenty-three million, three hundred thirty-one thousand, two hundred twenty-one".