203042032251 has 8 divisors (see below), whose sum is σ = 273403132944. Its totient is φ = 134021143200.

The previous prime is 203042032213. The next prime is 203042032267. The reversal of 203042032251 is 152230240302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203042032251 - 2⁹ = 203042031739 is a prime.

It is a super-2 number, since 2×203042032251² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203043032251) 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 7 ways as a sum of consecutive naturals, for example, 335052556 + ... + 335053161.

It is an arithmetic number, because the mean of its divisors is an integer number (34175391618).

Almost surely, 2^203042032251 is an apocalyptic number.

203042032251 is a deficient number, since it is larger than the sum of its proper divisors (70361100693).

203042032251 is a wasteful number, since it uses less digits than its factorization.

203042032251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670105821.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 203042032251 its reverse (152230240302), we get a palindrome (355272272553).

The spelling of 203042032251 in words is "two hundred three billion, forty-two million, thirty-two thousand, two hundred fifty-one".