203130023421403 has 8 divisors (see below), whose sum is σ = 218778123648896. Its totient is φ = 187485168024000.

The previous prime is 203130023421361. The next prime is 203130023421427. The reversal of 203130023421403 is 304124320031302.

It is a happy number.

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 203130023421403 - 2¹³ = 203130023413211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203130023421463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811077498 + ... + 811327903.

It is an arithmetic number, because the mean of its divisors is an integer number (27347265456112).

Almost surely, 2^{203130023421403} is an apocalyptic number.

203130023421403 is a deficient number, since it is larger than the sum of its proper divisors (15648100227493).

203130023421403 is a wasteful number, since it uses less digits than its factorization.

203130023421403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622415045.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 203130023421403 its reverse (304124320031302), we get a palindrome (507254343452705).

The spelling of 203130023421403 in words is "two hundred three trillion, one hundred thirty billion, twenty-three million, four hundred twenty-one thousand, four hundred three".