203111303430342 has 128 divisors (see below), whose sum is σ = 411478892697600. Its totient is φ = 66835548624384.

The previous prime is 203111303430307. The next prime is 203111303430389. The reversal of 203111303430342 is 243034303111302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165265502584 + ... + 165265503812.

It is an arithmetic number, because the mean of its divisors is an integer number (3214678849200).

Almost surely, 2^{203111303430342} is an apocalyptic number.

203111303430342 is an abundant number, since it is smaller than the sum of its proper divisors (208367589267258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203111303430342 is a wasteful number, since it uses less digits than its factorization.

203111303430342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 203111303430342 its reverse (243034303111302), we get a palindrome (446145606541644).

The spelling of 203111303430342 in words is "two hundred three trillion, one hundred eleven billion, three hundred three million, four hundred thirty thousand, three hundred forty-two".