243311200197 has 64 divisors (see below), whose sum is σ = 380353397760. Its totient is φ = 136973721600.

The previous prime is 243311200157. The next prime is 243311200213. The reversal of 243311200197 is 791002113342.

It is not a de Polignac number, because 243311200197 - 2¹⁴ = 243311183813 is a prime.

It is a super-2 number, since 2×243311200197² (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 (243311200157) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7350079 + ... + 7383107.

It is an arithmetic number, because the mean of its divisors is an integer number (5943021840).

Almost surely, 2^243311200197 is an apocalyptic number.

It is an amenable number.

243311200197 is a deficient number, since it is larger than the sum of its proper divisors (137042197563).

243311200197 is a wasteful number, since it uses less digits than its factorization.

243311200197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33374.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 243311200197 in words is "two hundred forty-three billion, three hundred eleven million, two hundred thousand, one hundred ninety-seven".