243312163142 has 4 divisors (see below), whose sum is σ = 364968244716. Its totient is φ = 121656081570.

The previous prime is 243312163117. The next prime is 243312163151. The reversal of 243312163142 is 241361213342.

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

It is a junction number, because it is equal to n+sod(n) for n = 243312163099 and 243312163108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60828040784 + ... + 60828040787.

It is an arithmetic number, because the mean of its divisors is an integer number (91242061179).

Almost surely, 2^243312163142 is an apocalyptic number.

243312163142 is a deficient number, since it is larger than the sum of its proper divisors (121656081574).

243312163142 is a wasteful number, since it uses less digits than its factorization.

243312163142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121656081573.

The product of its digits is 20736, while the sum is 32.

Adding to 243312163142 its reverse (241361213342), we get a palindrome (484673376484).

The spelling of 243312163142 in words is "two hundred forty-three billion, three hundred twelve million, one hundred sixty-three thousand, one hundred forty-two".