203343424331100 has 72 divisors (see below), whose sum is σ = 596399764065840. Its totient is φ = 53482106119680.

The previous prime is 203343424331081. The next prime is 203343424331107. The reversal of 203343424331100 is 1133424343302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203343424331107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4642522035 + ... + 4642565834.

It is an arithmetic number, because the mean of its divisors is an integer number (8283330056470).

Almost surely, 2^{203343424331100} is an apocalyptic number.

203343424331100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203343424331100 is an abundant number, since it is smaller than the sum of its proper divisors (393056339734740).

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

203343424331100 is a wasteful number, since it uses less digits than its factorization.

203343424331100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285087959 (or 9285087952 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 203343424331100 its reverse (1133424343302), we get a palindrome (204476848674402).

The spelling of 203343424331100 in words is "two hundred three trillion, three hundred forty-three billion, four hundred twenty-four million, three hundred thirty-one thousand, one hundred".