343212120 has 64 divisors (see below), whose sum is σ = 1144044000. Its totient is φ = 91522944.

The previous prime is 343212109. The next prime is 343212127. The reversal of 343212120 is 21212343.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 343212093 and 343212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343212127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157815 + ... + 159974.

Almost surely, 2^343212120 is an apocalyptic number.

343212120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343212120 is an abundant number, since it is smaller than the sum of its proper divisors (800831880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343212120 is a wasteful number, since it uses less digits than its factorization.

343212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317809 (or 317799 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 343212120 is about 18525.9849940563. The cubic root of 343212120 is about 700.1442695838.

Adding to 343212120 its reverse (21212343), we get a palindrome (364424463).

The spelling of 343212120 in words is "three hundred forty-three million, two hundred twelve thousand, one hundred twenty".