203142144202342 has 4 divisors (see below), whose sum is σ = 304713216303516. Its totient is φ = 101571072101170.

The previous prime is 203142144202219. The next prime is 203142144202363. The reversal of 203142144202342 is 243202441241302.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×203142144202342² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203142144202298 and 203142144202307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50785536050584 + ... + 50785536050587.

It is an arithmetic number, because the mean of its divisors is an integer number (76178304075879).

Almost surely, 2^{203142144202342} is an apocalyptic number.

203142144202342 is a deficient number, since it is larger than the sum of its proper divisors (101571072101174).

203142144202342 is a wasteful number, since it uses less digits than its factorization.

203142144202342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101571072101173.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 203142144202342 its reverse (243202441241302), we get a palindrome (446344585443644).

The spelling of 203142144202342 in words is "two hundred three trillion, one hundred forty-two billion, one hundred forty-four million, two hundred two thousand, three hundred forty-two".