243200000505 has 64 divisors (see below), whose sum is σ = 485673596928. Its totient is φ = 100958261760.

The previous prime is 243200000447. The next prime is 243200000531. The reversal of 243200000505 is 505000002342.

It is not a de Polignac number, because 243200000505 - 2⁶ = 243200000441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 931509 + ... + 1163661.

It is an arithmetic number, because the mean of its divisors is an integer number (7588649952).

Almost surely, 2^243200000505 is an apocalyptic number.

It is an amenable number.

243200000505 is a deficient number, since it is larger than the sum of its proper divisors (242473596423).

243200000505 is a wasteful number, since it uses less digits than its factorization.

243200000505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233086.

The product of its (nonzero) digits is 1200, while the sum is 21.

Adding to 243200000505 its reverse (505000002342), we get a palindrome (748200002847).

The spelling of 243200000505 in words is "two hundred forty-three billion, two hundred million, five hundred five", and thus it is an aban number.