203454540231 has 8 divisors (see below), whose sum is σ = 272273727744. Its totient is φ = 135135856440.

The previous prime is 203454540203. The next prime is 203454540259. The reversal of 203454540231 is 132045454302.

It is an interprime number because it is at equal distance from previous prime (203454540203) and next prime (203454540259).

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

It is not a de Polignac number, because 203454540231 - 2⁷ = 203454540103 is a prime.

It is a super-2 number, since 2×203454540231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203454540192 and 203454540201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203454540631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125124981 + ... + 125126606.

It is an arithmetic number, because the mean of its divisors is an integer number (34034215968).

Almost surely, 2^203454540231 is an apocalyptic number.

203454540231 is a deficient number, since it is larger than the sum of its proper divisors (68819187513).

203454540231 is a wasteful number, since it uses less digits than its factorization.

203454540231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250251861.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 203454540231 its reverse (132045454302), we get a palindrome (335499994533).

The spelling of 203454540231 in words is "two hundred three billion, four hundred fifty-four million, five hundred forty thousand, two hundred thirty-one".