243142301399 has 4 divisors (see below), whose sum is σ = 245414659464. Its totient is φ = 240869943336.

The previous prime is 243142301393. The next prime is 243142301401. The reversal of 243142301399 is 993103241342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243142301399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243142301393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136178872 + ... + 1136179085.

It is an arithmetic number, because the mean of its divisors is an integer number (61353664866).

Almost surely, 2^243142301399 is an apocalyptic number.

243142301399 is a deficient number, since it is larger than the sum of its proper divisors (2272358065).

243142301399 is a wasteful number, since it uses less digits than its factorization.

243142301399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272358064.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 243142301399 in words is "two hundred forty-three billion, one hundred forty-two million, three hundred one thousand, three hundred ninety-nine".