203400400142 has 32 divisors (see below), whose sum is σ = 322381036800. Its totient is φ = 95981191488.

The previous prime is 203400400139. The next prime is 203400400163. The reversal of 203400400142 is 241004004302.

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 in 15 ways as a sum of consecutive naturals, for example, 24247673 + ... + 24256059.

It is an arithmetic number, because the mean of its divisors is an integer number (10074407400).

Almost surely, 2^203400400142 is an apocalyptic number.

203400400142 is a deficient number, since it is larger than the sum of its proper divisors (118980636658).

203400400142 is a wasteful number, since it uses less digits than its factorization.

203400400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10760.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 203400400142 its reverse (241004004302), we get a palindrome (444404404444).

The spelling of 203400400142 in words is "two hundred three billion, four hundred million, four hundred thousand, one hundred forty-two".