203041510343442 has 80 divisors (see below), whose sum is σ = 461595014191872. Its totient is φ = 66694904357760.

The previous prime is 203041510343423. The next prime is 203041510343443. The reversal of 203041510343442 is 244343015140302.

203041510343442 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 41 + 510 + 34 + 34 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 203041510343397 and 203041510343406.

It is not an unprimeable number, because it can be changed into a prime (203041510343443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19450218 + ... + 28007034.

Almost surely, 2^{203041510343442} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203041510343442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230797507095936).

203041510343442 is an abundant number, since it is smaller than the sum of its proper divisors (258553503848430).

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

203041510343442 is a wasteful number, since it uses less digits than its factorization.

203041510343442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8558965 (or 8558956 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 203041510343442 its reverse (244343015140302), we get a palindrome (447384525483744).

The spelling of 203041510343442 in words is "two hundred three trillion, forty-one billion, five hundred ten million, three hundred forty-three thousand, four hundred forty-two".