203243343425 has 24 divisors (see below), whose sum is σ = 265318241760. Its totient is φ = 154018368000.

The previous prime is 203243343421. The next prime is 203243343451. The reversal of 203243343425 is 524343342302.

It is not a de Polignac number, because 203243343425 - 2² = 203243343421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203243343421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4858850 + ... + 4900500.

It is an arithmetic number, because the mean of its divisors is an integer number (11054926740).

Almost surely, 2^203243343425 is an apocalyptic number.

203243343425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203243343425 is a deficient number, since it is larger than the sum of its proper divisors (62074898335).

203243343425 is a wasteful number, since it uses less digits than its factorization.

203243343425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51953 (or 51948 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 35.

Adding to 203243343425 its reverse (524343342302), we get a palindrome (727586685727).

The spelling of 203243343425 in words is "two hundred three billion, two hundred forty-three million, three hundred forty-three thousand, four hundred twenty-five".