243313405634 has 32 divisors (see below), whose sum is σ = 396852825600. Its totient is φ = 111211183872.

The previous prime is 243313405613. The next prime is 243313405639. The reversal of 243313405634 is 436504313342.

It is a super-2 number, since 2×243313405634² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243313405639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9203567 + ... + 9229965.

It is an arithmetic number, because the mean of its divisors is an integer number (12401650800).

Almost surely, 2^243313405634 is an apocalyptic number.

243313405634 is a deficient number, since it is larger than the sum of its proper divisors (153539419966).

243313405634 is a wasteful number, since it uses less digits than its factorization.

243313405634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29834.

The product of its (nonzero) digits is 311040, while the sum is 38.

Adding to 243313405634 its reverse (436504313342), we get a palindrome (679817718976).

The spelling of 243313405634 in words is "two hundred forty-three billion, three hundred thirteen million, four hundred five thousand, six hundred thirty-four".