203534013142 has 4 divisors (see below), whose sum is σ = 305301019716. Its totient is φ = 101767006570.

The previous prime is 203534013113. The next prime is 203534013197. The reversal of 203534013142 is 241310435302.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 203534013142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50883503284 + ... + 50883503287.

It is an arithmetic number, because the mean of its divisors is an integer number (76325254929).

Almost surely, 2^203534013142 is an apocalyptic number.

203534013142 is a deficient number, since it is larger than the sum of its proper divisors (101767006574).

203534013142 is a wasteful number, since it uses less digits than its factorization.

203534013142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101767006573.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 203534013142 its reverse (241310435302), we get a palindrome (444844448444).

The spelling of 203534013142 in words is "two hundred three billion, five hundred thirty-four million, thirteen thousand, one hundred forty-two".