203145022135 has 32 divisors (see below), whose sum is σ = 266738427648. Its totient is φ = 147296171520.

The previous prime is 203145022079. The next prime is 203145022139. The reversal of 203145022135 is 531220541302.

It is not a de Polignac number, because 203145022135 - 2³⁵ = 168785283767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203145022139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53415144 + ... + 53418946.

It is an arithmetic number, because the mean of its divisors is an integer number (8335575864).

Almost surely, 2^203145022135 is an apocalyptic number.

203145022135 is a deficient number, since it is larger than the sum of its proper divisors (63593405513).

203145022135 is a wasteful number, since it uses less digits than its factorization.

203145022135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 203145022135 its reverse (531220541302), we get a palindrome (734365563437).

The spelling of 203145022135 in words is "two hundred three billion, one hundred forty-five million, twenty-two thousand, one hundred thirty-five".