203442002000 has 40 divisors (see below), whose sum is σ = 491922765672. Its totient is φ = 81376800000.

The previous prime is 203442001981. The next prime is 203442002003. The reversal of 203442002000 is 200244302.

It can be written as a sum of positive squares in 4 ways, for example, as 8946889744 + 194495112256 = 94588^2 + 441016^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 203442002000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203442002003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50858501 + ... + 50862500.

Almost surely, 2^203442002000 is an apocalyptic number.

203442002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203442002000 is an abundant number, since it is smaller than the sum of its proper divisors (288480763672).

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

203442002000 is a wasteful number, since it uses less digits than its factorization.

203442002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101721024 (or 101721008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 203442002000 its reverse (200244302), we get a palindrome (203642246302).

The spelling of 203442002000 in words is "two hundred three billion, four hundred forty-two million, two thousand".