343542121342 has 32 divisors (see below), whose sum is σ = 596355781824. Its totient is φ = 145383552000.

The previous prime is 343542121319. The next prime is 343542121369. The reversal of 343542121342 is 243121245343.

It is a super-2 number, since 2×343542121342² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343542121298 and 343542121307.

It is a congruent number.

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, 201742 + ... + 853102.

It is an arithmetic number, because the mean of its divisors is an integer number (18636118182).

Almost surely, 2^343542121342 is an apocalyptic number.

343542121342 is a deficient number, since it is larger than the sum of its proper divisors (252813660482).

343542121342 is a wasteful number, since it uses less digits than its factorization.

343542121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651844.

The product of its digits is 69120, while the sum is 34.

Adding to 343542121342 its reverse (243121245343), we get a palindrome (586663366685).

The spelling of 343542121342 in words is "three hundred forty-three billion, five hundred forty-two million, one hundred twenty-one thousand, three hundred forty-two".