342212321 has 12 divisors (see below), whose sum is σ = 376775700. Its totient is φ = 310585440.

The previous prime is 342212309. The next prime is 342212359. The reversal of 342212321 is 123212243.

It can be written as a sum of positive squares in 2 ways, for example, as 98227921 + 243984400 = 9911^2 + 15620^2 .

It is not a de Polignac number, because 342212321 - 2¹⁴ = 342195937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342212293 and 342212302.

It is not an unprimeable number, because it can be changed into a prime (342212821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83795 + ... + 87783.

It is an arithmetic number, because the mean of its divisors is an integer number (31397975).

Almost surely, 2^342212321 is an apocalyptic number.

It is an amenable number.

342212321 is a deficient number, since it is larger than the sum of its proper divisors (34563379).

342212321 is a wasteful number, since it uses less digits than its factorization.

342212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720 (or 4709 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 342212321 is about 18498.9816206190. The cubic root of 342212321 is about 699.4637532497.

Adding to 342212321 its reverse (123212243), we get a palindrome (465424564).

The spelling of 342212321 in words is "three hundred forty-two million, two hundred twelve thousand, three hundred twenty-one".