203025231142551 has 12 divisors (see below), whose sum is σ = 293911804555200. Its totient is φ = 135048706087680.

The previous prime is 203025231142549. The next prime is 203025231142579. The reversal of 203025231142551 is 155241132520302.

203025231142551 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 2 + 52 + 3 + 11 + 42 + 551 = 666.

It is not a de Polignac number, because 203025231142551 - 2¹ = 203025231142549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203025231142501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25120663015 + ... + 25120671096.

It is an arithmetic number, because the mean of its divisors is an integer number (24492650379600).

Almost surely, 2^{203025231142551} is an apocalyptic number.

203025231142551 is a deficient number, since it is larger than the sum of its proper divisors (90886573412649).

203025231142551 is a wasteful number, since it uses less digits than its factorization.

203025231142551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50241334566 (or 50241334563 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 203025231142551 its reverse (155241132520302), we get a palindrome (358266363662853).

The spelling of 203025231142551 in words is "two hundred three trillion, twenty-five billion, two hundred thirty-one million, one hundred forty-two thousand, five hundred fifty-one".