203135423000 has 64 divisors (see below), whose sum is σ = 475440001920. Its totient is φ = 81236544000.

The previous prime is 203135422991. The next prime is 203135423009. The reversal of 203135423000 is 324531302.

It is an interprime number because it is at equal distance from previous prime (203135422991) and next prime (203135423009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203135423009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5211584 + ... + 5250416.

It is an arithmetic number, because the mean of its divisors is an integer number (7428750030).

Almost surely, 2^203135423000 is an apocalyptic number.

203135423000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203135423000 is an abundant number, since it is smaller than the sum of its proper divisors (272304578920).

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

203135423000 is a wasteful number, since it uses less digits than its factorization.

203135423000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44085 (or 44071 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 203135423000 its reverse (324531302), we get a palindrome (203459954302).

The spelling of 203135423000 in words is "two hundred three billion, one hundred thirty-five million, four hundred twenty-three thousand".