203121302134042 has 8 divisors (see below), whose sum is σ = 304684858264032. Its totient is φ = 101559682712700.

The previous prime is 203121302134039. The next prime is 203121302134081. The reversal of 203121302134042 is 240431203121302.

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

It is a self number, because there is not a number n which added to its sum of digits gives 203121302134042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483914934 + ... + 484334497.

It is an arithmetic number, because the mean of its divisors is an integer number (38085607283004).

Almost surely, 2^{203121302134042} is an apocalyptic number.

203121302134042 is a deficient number, since it is larger than the sum of its proper divisors (101563556129990).

203121302134042 is a wasteful number, since it uses less digits than its factorization.

203121302134042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968354324.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 203121302134042 its reverse (240431203121302), we get a palindrome (443552505255344).

The spelling of 203121302134042 in words is "two hundred three trillion, one hundred twenty-one billion, three hundred two million, one hundred thirty-four thousand, forty-two".