243435215042 has 16 divisors (see below), whose sum is σ = 367747128000. Its totient is φ = 120853611600.

The previous prime is 243435215033. The next prime is 243435215077. The reversal of 243435215042 is 240512534342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243435214993 and 243435215011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441884 + ... + 825912.

It is an arithmetic number, because the mean of its divisors is an integer number (22984195500).

Almost surely, 2^243435215042 is an apocalyptic number.

243435215042 is a deficient number, since it is larger than the sum of its proper divisors (124311912958).

243435215042 is a wasteful number, since it uses less digits than its factorization.

243435215042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386281.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 243435215042 its reverse (240512534342), we get a palindrome (483947749384).

The spelling of 243435215042 in words is "two hundred forty-three billion, four hundred thirty-five million, two hundred fifteen thousand, forty-two".