203234121243040 has 24 divisors (see below), whose sum is σ = 480140611437060. Its totient is φ = 81293648497152.

The previous prime is 203234121242921. The next prime is 203234121243053. The reversal of 203234121243040 is 40342121432302.

It can be written as a sum of positive squares in 2 ways, for example, as 199782507189136 + 3451614053904 = 14134444^2 + 1857852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203234121242993 and 203234121243011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635106628725 + ... + 635106629044.

Almost surely, 2^{203234121243040} is an apocalyptic number.

203234121243040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203234121243040 is an abundant number, since it is smaller than the sum of its proper divisors (276906490194020).

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

203234121243040 is a wasteful number, since it uses less digits than its factorization.

203234121243040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270213257784 (or 1270213257776 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 203234121243040 its reverse (40342121432302), we get a palindrome (243576242675342).

The spelling of 203234121243040 in words is "two hundred three trillion, two hundred thirty-four billion, one hundred twenty-one million, two hundred forty-three thousand, forty".