203431353140 has 24 divisors (see below), whose sum is σ = 428429941800. Its totient is φ = 81139379328.

The previous prime is 203431353121. The next prime is 203431353239. The reversal of 203431353140 is 41353134302.

203431353140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 63284446096 + 140146907044 = 251564^2 + 374362^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14565467 + ... + 14579426.

It is an arithmetic number, because the mean of its divisors is an integer number (17851247575).

Almost surely, 2^203431353140 is an apocalyptic number.

203431353140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203431353140 is an abundant number, since it is smaller than the sum of its proper divisors (224998588660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203431353140 is a wasteful number, since it uses less digits than its factorization.

203431353140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29145251 (or 29145249 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 203431353140 its reverse (41353134302), we get a palindrome (244784487442).

The spelling of 203431353140 in words is "two hundred three billion, four hundred thirty-one million, three hundred fifty-three thousand, one hundred forty".