243102420201 has 16 divisors (see below), whose sum is σ = 330495292800. Its totient is φ = 158893413120.

The previous prime is 243102420191. The next prime is 243102420203. The reversal of 243102420201 is 102024201342.

It is not a de Polignac number, because 243102420201 - 2³³ = 234512485609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243102420203) 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, 345301 + ... + 778098.

It is an arithmetic number, because the mean of its divisors is an integer number (20655955800).

Almost surely, 2^243102420201 is an apocalyptic number.

It is an amenable number.

243102420201 is a deficient number, since it is larger than the sum of its proper divisors (87392872599).

243102420201 is a wasteful number, since it uses less digits than its factorization.

243102420201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124816.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 243102420201 its reverse (102024201342), we get a palindrome (345126621543).

The spelling of 243102420201 in words is "two hundred forty-three billion, one hundred two million, four hundred twenty thousand, two hundred one".