203123610142 has 4 divisors (see below), whose sum is σ = 304685415216. Its totient is φ = 101561805070.

The previous prime is 203123610083. The next prime is 203123610149. The reversal of 203123610142 is 241016321302.

203123610142 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203123610149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50780902534 + ... + 50780902537.

It is an arithmetic number, because the mean of its divisors is an integer number (76171353804).

Almost surely, 2^203123610142 is an apocalyptic number.

203123610142 is a deficient number, since it is larger than the sum of its proper divisors (101561805074).

203123610142 is a wasteful number, since it uses less digits than its factorization.

203123610142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101561805073.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 203123610142 its reverse (241016321302), we get a palindrome (444139931444).

The spelling of 203123610142 in words is "two hundred three billion, one hundred twenty-three million, six hundred ten thousand, one hundred forty-two".