203145051051 has 6 divisors (see below), whose sum is σ = 293431740420. Its totient is φ = 135430034028.

The previous prime is 203145051017. The next prime is 203145051061. The reversal of 203145051051 is 150150541302.

203145051051 is a `hidden beast` number, since 2 + 0 + 3 + 145 + 0 + 510 + 5 + 1 = 666.

It is not a de Polignac number, because 203145051051 - 2²⁹ = 202608180139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203145051001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11285836161 + ... + 11285836178.

It is an arithmetic number, because the mean of its divisors is an integer number (48905290070).

Almost surely, 2^203145051051 is an apocalyptic number.

203145051051 is a deficient number, since it is larger than the sum of its proper divisors (90286689369).

203145051051 is a wasteful number, since it uses less digits than its factorization.

203145051051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22571672345 (or 22571672342 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 203145051051 its reverse (150150541302), we get a palindrome (353295592353).

The spelling of 203145051051 in words is "two hundred three billion, one hundred forty-five million, fifty-one thousand, fifty-one".