203120545552 has 20 divisors (see below), whose sum is σ = 393569809920. Its totient is φ = 101554143008.

The previous prime is 203120545499. The next prime is 203120545561. The reversal of 203120545552 is 255545021302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103552 + ... + 645727.

It is an arithmetic number, because the mean of its divisors is an integer number (19678490496).

Almost surely, 2^203120545552 is an apocalyptic number.

It is an amenable number.

203120545552 is a deficient number, since it is larger than the sum of its proper divisors (190449264368).

203120545552 is a wasteful number, since it uses less digits than its factorization.

203120545552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766230 (or 766224 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 203120545552 its reverse (255545021302), we get a palindrome (458665566854).

The spelling of 203120545552 in words is "two hundred three billion, one hundred twenty million, five hundred forty-five thousand, five hundred fifty-two".