203220754542 has 48 divisors (see below), whose sum is σ = 475474009920. Its totient is φ = 62359056576.

The previous prime is 203220754381. The next prime is 203220754547. The reversal of 203220754542 is 245457022302.

203220754542 is a `hidden beast` number, since 20 + 3 + 2 + 20 + 75 + 4 + 542 = 666.

203220754542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 203220754497 and 203220754506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203220754547) 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 23 ways as a sum of consecutive naturals, for example, 1097317 + ... + 1269072.

It is an arithmetic number, because the mean of its divisors is an integer number (9905708540).

Almost surely, 2^203220754542 is an apocalyptic number.

203220754542 is an abundant number, since it is smaller than the sum of its proper divisors (272253255378).

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

203220754542 is a wasteful number, since it uses less digits than its factorization.

203220754542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366777 (or 2366774 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 36.

Adding to 203220754542 its reverse (245457022302), we get a palindrome (448677776844).

The spelling of 203220754542 in words is "two hundred three billion, two hundred twenty million, seven hundred fifty-four thousand, five hundred forty-two".