343121334340 has 48 divisors (see below), whose sum is σ = 752760046080. Its totient is φ = 131220887040.

The previous prime is 343121334313. The next prime is 343121334403. The reversal of 343121334340 is 43433121343.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3282405 + ... + 3385324.

It is an arithmetic number, because the mean of its divisors is an integer number (15682500960).

Almost surely, 2^343121334340 is an apocalyptic number.

It is an amenable number.

343121334340 is an abundant number, since it is smaller than the sum of its proper divisors (409638711740).

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

343121334340 is a wasteful number, since it uses less digits than its factorization.

343121334340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667852 (or 6667850 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 343121334340 its reverse (43433121343), we get a palindrome (386554455683).

The spelling of 343121334340 in words is "three hundred forty-three billion, one hundred twenty-one million, three hundred thirty-four thousand, three hundred forty".