243130122197 has 8 divisors (see below), whose sum is σ = 245366633472. Its totient is φ = 240898644000.

The previous prime is 243130122101. The next prime is 243130122247. The reversal of 243130122197 is 791221031342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243130122197 is a prime.

It is a super-2 number, since 2×243130122197² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243130124197) 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, 1161179 + ... + 1354472.

It is an arithmetic number, because the mean of its divisors is an integer number (30670829184).

Almost surely, 2^243130122197 is an apocalyptic number.

It is an amenable number.

243130122197 is a deficient number, since it is larger than the sum of its proper divisors (2236511275).

243130122197 is a wasteful number, since it uses less digits than its factorization.

243130122197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516539.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 243130122197 in words is "two hundred forty-three billion, one hundred thirty million, one hundred twenty-two thousand, one hundred ninety-seven".