243121243052 has 6 divisors (see below), whose sum is σ = 425462175348. Its totient is φ = 121560621524.

The previous prime is 243121243039. The next prime is 243121243061. The reversal of 243121243052 is 250342121342.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30390155378 + ... + 30390155385.

It is an arithmetic number, because the mean of its divisors is an integer number (70910362558).

Almost surely, 2^243121243052 is an apocalyptic number.

It is an amenable number.

243121243052 is a deficient number, since it is larger than the sum of its proper divisors (182340932296).

243121243052 is a wasteful number, since it uses less digits than its factorization.

243121243052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60780310767 (or 60780310765 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 243121243052 its reverse (250342121342), we get a palindrome (493463364394).

The spelling of 243121243052 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-three thousand, fifty-two".