243121245334 has 16 divisors (see below), whose sum is σ = 397843013376. Its totient is φ = 110507365800.

The previous prime is 243121245331. The next prime is 243121245347. The reversal of 243121245334 is 433542121342.

It is a self number, because there is not a number n which added to its sum of digits gives 243121245334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243121245331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438639 + ... + 1598725.

It is an arithmetic number, because the mean of its divisors is an integer number (24865188336).

Almost surely, 2^243121245334 is an apocalyptic number.

243121245334 is a deficient number, since it is larger than the sum of its proper divisors (154721768042).

243121245334 is a wasteful number, since it uses less digits than its factorization.

243121245334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229131.

The product of its digits is 69120, while the sum is 34.

Adding to 243121245334 its reverse (433542121342), we get a palindrome (676663366676).

The spelling of 243121245334 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-five thousand, three hundred thirty-four".