243103202011 has 8 divisors (see below), whose sum is σ = 255963682880. Its totient is φ = 230249278728.

The previous prime is 243103201997. The next prime is 243103202029. The reversal of 243103202011 is 110202301342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243103202011 - 2²¹ = 243101104859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243103202011.

It is not an unprimeable number, because it can be changed into a prime (243103202311) 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, 1563201 + ... + 1711666.

It is an arithmetic number, because the mean of its divisors is an integer number (31995460360).

Almost surely, 2^243103202011 is an apocalyptic number.

243103202011 is a deficient number, since it is larger than the sum of its proper divisors (12860480869).

243103202011 is a wasteful number, since it uses less digits than its factorization.

243103202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278793.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 243103202011 its reverse (110202301342), we get a palindrome (353305503353).

The spelling of 243103202011 in words is "two hundred forty-three billion, one hundred three million, two hundred two thousand, eleven".