342103121521 has 16 divisors (see below), whose sum is σ = 400095932544. Its totient is φ = 286391516544.

The previous prime is 342103121501. The next prime is 342103121533. The reversal of 342103121521 is 125121301243.

It is not a de Polignac number, because 342103121521 - 2⁵ = 342103121489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342103121501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5409741 + ... + 5472613.

It is an arithmetic number, because the mean of its divisors is an integer number (25005995784).

Almost surely, 2^342103121521 is an apocalyptic number.

It is an amenable number.

342103121521 is a deficient number, since it is larger than the sum of its proper divisors (57992811023).

342103121521 is a wasteful number, since it uses less digits than its factorization.

342103121521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81000.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 342103121521 its reverse (125121301243), we get a palindrome (467224422764).

The spelling of 342103121521 in words is "three hundred forty-two billion, one hundred three million, one hundred twenty-one thousand, five hundred twenty-one".