203121230002 has 8 divisors (see below), whose sum is σ = 314510291712. Its totient is φ = 98284466100.

The previous prime is 203121229991. The next prime is 203121230009. The reversal of 203121230002 is 200032121302.

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

It is not an unprimeable number, because it can be changed into a prime (203121230009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638074374 + ... + 1638074497.

It is an arithmetic number, because the mean of its divisors is an integer number (39313786464).

Almost surely, 2^203121230002 is an apocalyptic number.

203121230002 is a deficient number, since it is larger than the sum of its proper divisors (111389061710).

203121230002 is a wasteful number, since it uses less digits than its factorization.

203121230002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276148904.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 203121230002 its reverse (200032121302), we get a palindrome (403153351304).

The spelling of 203121230002 in words is "two hundred three billion, one hundred twenty-one million, two hundred thirty thousand, two".