342043211421 has 24 divisors (see below), whose sum is σ = 502386699360. Its totient is φ = 224190180000.

The previous prime is 342043211381. The next prime is 342043211429. The reversal of 342043211421 is 124112340243.

342043211421 is a `hidden beast` number, since 3 + 4 + 20 + 4 + 3 + 211 + 421 = 666.

It is not a de Polignac number, because 342043211421 - 2⁶ = 342043211357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342043211429) 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 23 ways as a sum of consecutive naturals, for example, 1097410 + ... + 1374188.

It is an arithmetic number, because the mean of its divisors is an integer number (20932779140).

Almost surely, 2^342043211421 is an apocalyptic number.

It is an amenable number.

342043211421 is a deficient number, since it is larger than the sum of its proper divisors (160343487939).

342043211421 is a wasteful number, since it uses less digits than its factorization.

342043211421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279097 (or 279094 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 342043211421 its reverse (124112340243), we get a palindrome (466155551664).

The spelling of 342043211421 in words is "three hundred forty-two billion, forty-three million, two hundred eleven thousand, four hundred twenty-one".