203142234031321 has 16 divisors (see below), whose sum is σ = 232024005360000. Its totient is φ = 176190927015168.

The previous prime is 203142234031279. The next prime is 203142234031337. The reversal of 203142234031321 is 123130432241302.

203142234031321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203142234031321 - 2³⁹ = 202592478217433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203142234031921) 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, 767142771 + ... + 767407528.

It is an arithmetic number, because the mean of its divisors is an integer number (14501500335000).

Almost surely, 2^{203142234031321} is an apocalyptic number.

It is an amenable number.

203142234031321 is a deficient number, since it is larger than the sum of its proper divisors (28881771328679).

203142234031321 is a wasteful number, since it uses less digits than its factorization.

203142234031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534550928.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 203142234031321 its reverse (123130432241302), we get a palindrome (326272666272623).

The spelling of 203142234031321 in words is "two hundred three trillion, one hundred forty-two billion, two hundred thirty-four million, thirty-one thousand, three hundred twenty-one".