342203121 has 48 divisors (see below), whose sum is σ = 551647824. Its totient is φ = 203046912.

The previous prime is 342203117. The next prime is 342203153. The reversal of 342203121 is 121302243.

342203121 is a `hidden beast` number, since 342 + 203 + 121 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 58752225 + 283450896 = 7665^2 + 16836^2 .

It is not a de Polignac number, because 342203121 - 2² = 342203117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342203094 and 342203103.

It is not an unprimeable number, because it can be changed into a prime (342203101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 592785 + ... + 593361.

It is an arithmetic number, because the mean of its divisors is an integer number (11492663).

Almost surely, 2^342203121 is an apocalyptic number.

It is an amenable number.

342203121 is a deficient number, since it is larger than the sum of its proper divisors (209444703).

342203121 is a wasteful number, since it uses less digits than its factorization.

342203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 342203121 is about 18498.7329566108. The cubic root of 342203121 is about 699.4574850902.

Adding to 342203121 its reverse (121302243), we get a palindrome (463505364).

The spelling of 342203121 in words is "three hundred forty-two million, two hundred three thousand, one hundred twenty-one".