343420213421012 has 24 divisors (see below), whose sum is σ = 739674305830656. Its totient is φ = 135858545968608.

The previous prime is 343420213421003. The next prime is 343420213421059. The reversal of 343420213421012 is 210124312024343.

It is a happy number.

It is a super-2 number, since 2×343420213421012² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 343420213421012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471731062028 + ... + 471731062755.

It is an arithmetic number, because the mean of its divisors is an integer number (30819762742944).

Almost surely, 2^{343420213421012} is an apocalyptic number.

It is an amenable number.

343420213421012 is an abundant number, since it is smaller than the sum of its proper divisors (396254092409644).

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

343420213421012 is a wasteful number, since it uses less digits than its factorization.

343420213421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943462124807 (or 943462124805 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 343420213421012 its reverse (210124312024343), we get a palindrome (553544525445355).

The spelling of 343420213421012 in words is "three hundred forty-three trillion, four hundred twenty billion, two hundred thirteen million, four hundred twenty-one thousand, twelve".