343011023421 has 16 divisors (see below), whose sum is σ = 525184343040. Its totient is φ = 196944127920.

The previous prime is 343011023417. The next prime is 343011023461. The reversal of 343011023421 is 124320110343.

It is a happy number.

It is not a de Polignac number, because 343011023421 - 2² = 343011023417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343011023391 and 343011023400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343011023401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273532885 + ... + 273534138.

It is an arithmetic number, because the mean of its divisors is an integer number (32824021440).

Almost surely, 2^343011023421 is an apocalyptic number.

It is an amenable number.

343011023421 is a deficient number, since it is larger than the sum of its proper divisors (182173319619).

343011023421 is a wasteful number, since it uses less digits than its factorization.

343011023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547067056.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 343011023421 its reverse (124320110343), we get a palindrome (467331133764).

The spelling of 343011023421 in words is "three hundred forty-three billion, eleven million, twenty-three thousand, four hundred twenty-one".