203342241430421 has 4 divisors (see below), whose sum is σ = 203378022228192. Its totient is φ = 203306460632652.

The previous prime is 203342241430417. The next prime is 203342241430457. The reversal of 203342241430421 is 124034142243302.

It is a happy number.

203342241430421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203342241430421 - 2² = 203342241430417 is a prime.

It is a super-2 number, since 2×203342241430421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203342241430621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17890390361 + ... + 17890401726.

It is an arithmetic number, because the mean of its divisors is an integer number (50844505557048).

Almost surely, 2^{203342241430421} is an apocalyptic number.

It is an amenable number.

203342241430421 is a deficient number, since it is larger than the sum of its proper divisors (35780797771).

203342241430421 is an equidigital number, since it uses as much as digits as its factorization.

203342241430421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35780797770.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 203342241430421 its reverse (124034142243302), we get a palindrome (327376383673723).

The spelling of 203342241430421 in words is "two hundred three trillion, three hundred forty-two billion, two hundred forty-one million, four hundred thirty thousand, four hundred twenty-one".