343243031 has 4 divisors (see below), whose sum is σ = 344232552. Its totient is φ = 342253512.

The previous prime is 343243013. The next prime is 343243051. The reversal of 343243031 is 130342343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130342343 = 3251 ⋅40093.

It is a cyclic number.

It is not a de Polignac number, because 343243031 - 2¹⁸ = 342980887 is a prime.

It is a super-2 number, since 2×343243031² = 235631556660133922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343242988 and 343243006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343243051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494240 + ... + 494933.

It is an arithmetic number, because the mean of its divisors is an integer number (86058138).

Almost surely, 2^343243031 is an apocalyptic number.

343243031 is a deficient number, since it is larger than the sum of its proper divisors (989521).

343243031 is an equidigital number, since it uses as much as digits as its factorization.

343243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989520.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 343243031 is about 18526.8192359077. The cubic root of 343243031 is about 700.1652881790.

Adding to 343243031 its reverse (130342343), we get a palindrome (473585374).

The spelling of 343243031 in words is "three hundred forty-three million, two hundred forty-three thousand, thirty-one".