243023035525 has 6 divisors (see below), whose sum is σ = 301348564082. Its totient is φ = 194418428400.

The previous prime is 243023035487. The next prime is 243023035547. The reversal of 243023035525 is 525530320342.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 91355364 + 242931680161 = 9558^2 + 492881^2 .

It is not a de Polignac number, because 243023035525 - 2⁷ = 243023035397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4860460686 + ... + 4860460735.

Almost surely, 2^243023035525 is an apocalyptic number.

243023035525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243023035525 is a deficient number, since it is larger than the sum of its proper divisors (58325528557).

243023035525 is an equidigital number, since it uses as much as digits as its factorization.

243023035525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720921431 (or 9720921426 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 243023035525 its reverse (525530320342), we get a palindrome (768553355867).

The spelling of 243023035525 in words is "two hundred forty-three billion, twenty-three million, thirty-five thousand, five hundred twenty-five".