343213431 has 32 divisors (see below), whose sum is σ = 520058880. Its totient is φ = 199449600.

The previous prime is 343213417. The next prime is 343213433. The reversal of 343213431 is 134312343.

It is not a de Polignac number, because 343213431 - 2¹⁴ = 343197047 is a prime.

It is a super-2 number, since 2×343213431² = 235590918437583522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343213433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114115 + ... + 117083.

It is an arithmetic number, because the mean of its divisors is an integer number (16251840).

Almost surely, 2^343213431 is an apocalyptic number.

343213431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

343213431 is a deficient number, since it is larger than the sum of its proper divisors (176845449).

343213431 is a wasteful number, since it uses less digits than its factorization.

343213431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127.

The product of its digits is 2592, while the sum is 24.

The square root of 343213431 is about 18526.0203767566. The cubic root of 343213431 is about 700.1451610519.

Adding to 343213431 its reverse (134312343), we get a palindrome (477525774).

The spelling of 343213431 in words is "three hundred forty-three million, two hundred thirteen thousand, four hundred thirty-one".