343143210300421 has 4 divisors (see below), whose sum is σ = 343457732034144. Its totient is φ = 342828688566700.

The previous prime is 343143210300419. The next prime is 343143210300467. The reversal of 343143210300421 is 124003012341343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 343143210300421 - 2¹ = 343143210300419 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 (343143210309421) 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, 157260865225 + ... + 157260867406.

It is an arithmetic number, because the mean of its divisors is an integer number (85864433008536).

Almost surely, 2^{343143210300421} is an apocalyptic number.

It is an amenable number.

343143210300421 is a deficient number, since it is larger than the sum of its proper divisors (314521733723).

343143210300421 is a wasteful number, since it uses less digits than its factorization.

343143210300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314521733722.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 343143210300421 its reverse (124003012341343), we get a palindrome (467146222641764).

The spelling of 343143210300421 in words is "three hundred forty-three trillion, one hundred forty-three billion, two hundred ten million, three hundred thousand, four hundred twenty-one".