203243113203241 has 4 divisors (see below), whose sum is σ = 203246241577300. Its totient is φ = 203239984829184.

The previous prime is 203243113203223. The next prime is 203243113203259. The reversal of 203243113203241 is 142302311342302.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (203243113203223) and next prime (203243113203259).

It can be written as a sum of positive squares in 2 ways, for example, as 49055735840400 + 154187377362841 = 7003980^2 + 12417221^2 .

It is a cyclic number.

It is not a de Polignac number, because 203243113203241 - 2¹³ = 203243113195049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203243113203041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1564089576 + ... + 1564219513.

It is an arithmetic number, because the mean of its divisors is an integer number (50811560394325).

Almost surely, 2^{203243113203241} is an apocalyptic number.

It is an amenable number.

203243113203241 is a deficient number, since it is larger than the sum of its proper divisors (3128374059).

203243113203241 is an equidigital number, since it uses as much as digits as its factorization.

203243113203241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128374058.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 203243113203241 its reverse (142302311342302), we get a palindrome (345545424545543).

The spelling of 203243113203241 in words is "two hundred three trillion, two hundred forty-three billion, one hundred thirteen million, two hundred three thousand, two hundred forty-one".