243503132430 has 32 divisors (see below), whose sum is σ = 593987973408. Its totient is φ = 63869673600.

The previous prime is 243503132423. The next prime is 243503132449. The reversal of 243503132430 is 34231305342.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66529081 + ... + 66532740.

It is an arithmetic number, because the mean of its divisors is an integer number (18562124169).

Almost surely, 2^243503132430 is an apocalyptic number.

243503132430 is an abundant number, since it is smaller than the sum of its proper divisors (350484840978).

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

243503132430 is a wasteful number, since it uses less digits than its factorization.

243503132430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133061892.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 243503132430 its reverse (34231305342), we get a palindrome (277734437772).

The spelling of 243503132430 in words is "two hundred forty-three billion, five hundred three million, one hundred thirty-two thousand, four hundred thirty".