203541353442 has 64 divisors (see below), whose sum is σ = 517626869760. Its totient is φ = 58076322192.

The previous prime is 203541353423. The next prime is 203541353461. The reversal of 203541353442 is 244353145302.

203541353442 is a `hidden beast` number, since 20 + 3 + 54 + 13 + 534 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (203541353423) and next prime (203541353461).

It is a super-2 number, since 2×203541353442² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203541353397 and 203541353406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81508 + ... + 643215.

It is an arithmetic number, because the mean of its divisors is an integer number (8087919840).

Almost surely, 2^203541353442 is an apocalyptic number.

203541353442 is an abundant number, since it is smaller than the sum of its proper divisors (314085516318).

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

203541353442 is a wasteful number, since it uses less digits than its factorization.

203541353442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725484 (or 725478 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 203541353442 its reverse (244353145302), we get a palindrome (447894498744).

The spelling of 203541353442 in words is "two hundred three billion, five hundred forty-one million, three hundred fifty-three thousand, four hundred forty-two".