343340341021 has 8 divisors (see below), whose sum is σ = 350393814144. Its totient is φ = 336348470640.

The previous prime is 343340340979. The next prime is 343340341109. The reversal of 343340341021 is 120143043343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343340341021 - 2³¹ = 341192857373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343340341121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15389425 + ... + 15411718.

It is an arithmetic number, because the mean of its divisors is an integer number (43799226768).

Almost surely, 2^343340341021 is an apocalyptic number.

It is an amenable number.

343340341021 is a deficient number, since it is larger than the sum of its proper divisors (7053473123).

343340341021 is a wasteful number, since it uses less digits than its factorization.

343340341021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30801371.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 343340341021 its reverse (120143043343), we get a palindrome (463483384364).

The spelling of 343340341021 in words is "three hundred forty-three billion, three hundred forty million, three hundred forty-one thousand, twenty-one".