343430121 has 32 divisors (see below), whose sum is σ = 487641088. Its totient is φ = 214643520.

The previous prime is 343430099. The next prime is 343430137. The reversal of 343430121 is 121034343.

It is not a de Polignac number, because 343430121 - 2²² = 339235817 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343432121) 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, 627570 + ... + 628116.

It is an arithmetic number, because the mean of its divisors is an integer number (15238784).

Almost surely, 2^343430121 is an apocalyptic number.

343430121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

343430121 is a deficient number, since it is larger than the sum of its proper divisors (144210967).

343430121 is a wasteful number, since it uses less digits than its factorization.

343430121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

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

The square root of 343430121 is about 18531.8677148311. The cubic root of 343430121 is about 700.2924770986.

Adding to 343430121 its reverse (121034343), we get a palindrome (464464464).

The spelling of 343430121 in words is "three hundred forty-three million, four hundred thirty thousand, one hundred twenty-one".