342021121 has 8 divisors (see below), whose sum is σ = 369985280. Its totient is φ = 314293392.

The previous prime is 342021103. The next prime is 342021149. The reversal of 342021121 is 121120243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 342021121 - 2⁵ = 342021089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342021095 and 342021104.

It is not an unprimeable number, because it can be changed into a prime (342021161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56091 + ... + 61888.

It is an arithmetic number, because the mean of its divisors is an integer number (46248160).

Almost surely, 2^342021121 is an apocalyptic number.

It is an amenable number.

342021121 is a deficient number, since it is larger than the sum of its proper divisors (27964159).

342021121 is a wasteful number, since it uses less digits than its factorization.

342021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118215.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 342021121 is about 18493.8130465299. The cubic root of 342021121 is about 699.3334614432. Note that the first 3 decimals are identical.

Adding to 342021121 its reverse (121120243), we get a palindrome (463141364).

The spelling of 342021121 in words is "three hundred forty-two million, twenty-one thousand, one hundred twenty-one".