243421321010 has 64 divisors (see below), whose sum is σ = 508212610560. Its totient is φ = 82217264640.

The previous prime is 243421320991. The next prime is 243421321057. The reversal of 243421321010 is 10123124342.

243421321010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6387332 + ... + 6425328.

It is an arithmetic number, because the mean of its divisors is an integer number (7940822040).

Almost surely, 2^243421321010 is an apocalyptic number.

243421321010 is an abundant number, since it is smaller than the sum of its proper divisors (264791289550).

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

243421321010 is a wasteful number, since it uses less digits than its factorization.

243421321010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 243421321010 its reverse (10123124342), we get a palindrome (253544445352).

The spelling of 243421321010 in words is "two hundred forty-three billion, four hundred twenty-one million, three hundred twenty-one thousand, ten".