343222131 has 8 divisors (see below), whose sum is σ = 523005184. Its totient is φ = 196126920.

The previous prime is 343222097. The next prime is 343222133. The reversal of 343222131 is 131222343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 343222131 - 2⁶ = 343222067 is a prime.

It is a super-2 number, since 2×343222131² = 235602862416362322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 16343911 = 343222131 / (3 + 4 + 3 + 2 + 2 + 2 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343222098 and 343222107.

It is not an unprimeable number, because it can be changed into a prime (343222133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8171935 + ... + 8171976.

It is an arithmetic number, because the mean of its divisors is an integer number (65375648).

Almost surely, 2^343222131 is an apocalyptic number.

343222131 is a deficient number, since it is larger than the sum of its proper divisors (179783053).

343222131 is a wasteful number, since it uses less digits than its factorization.

343222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16343921.

The product of its digits is 864, while the sum is 21.

The square root of 343222131 is about 18526.2551801491. The cubic root of 343222131 is about 700.1510769154.

Adding to 343222131 its reverse (131222343), we get a palindrome (474444474).

The spelling of 343222131 in words is "three hundred forty-three million, two hundred twenty-two thousand, one hundred thirty-one".