203202030130421 has 16 divisors (see below), whose sum is σ = 235052983517184. Its totient is φ = 172057030611504.

The previous prime is 203202030130403. The next prime is 203202030130439. The reversal of 203202030130421 is 124031030202302.

It is an interprime number because it is at equal distance from previous prime (203202030130403) and next prime (203202030130439).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203202030130421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203202030136421) 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, 12287861 + ... + 23609226.

It is an arithmetic number, because the mean of its divisors is an integer number (14690811469824).

Almost surely, 2^{203202030130421} is an apocalyptic number.

It is an amenable number.

203202030130421 is a deficient number, since it is larger than the sum of its proper divisors (31850953386763).

203202030130421 is an equidigital number, since it uses as much as digits as its factorization.

203202030130421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35906920.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 203202030130421 its reverse (124031030202302), we get a palindrome (327233060332723).

The spelling of 203202030130421 in words is "two hundred three trillion, two hundred two billion, thirty million, one hundred thirty thousand, four hundred twenty-one".