243200135700 has 108 divisors (see below), whose sum is σ = 762453414268. Its totient is φ = 64840089600.

The previous prime is 243200135693. The next prime is 243200135701. The reversal of 243200135700 is 7531002342.

It can be written as a sum of positive squares in 6 ways, for example, as 1354534416 + 241845601284 = 36804^2 + 491778^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243200135701) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4846740 + ... + 4896660.

Almost surely, 2^243200135700 is an apocalyptic number.

243200135700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243200135700 is an abundant number, since it is smaller than the sum of its proper divisors (519253278568).

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

243200135700 is a wasteful number, since it uses less digits than its factorization.

243200135700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55354 (or 55344 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The spelling of 243200135700 in words is "two hundred forty-three billion, two hundred million, one hundred thirty-five thousand, seven hundred".