243423421012 has 6 divisors (see below), whose sum is σ = 425990986778. Its totient is φ = 121711710504.

The previous prime is 243423420997. The next prime is 243423421027. The reversal of 243423421012 is 210124324342.

It is an interprime number because it is at equal distance from previous prime (243423420997) and next prime (243423421027).

It can be written as a sum of positive squares in only one way, i.e., 236783452816 + 6639968196 = 486604^2 + 81486^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30427927623 + ... + 30427927630.

Almost surely, 2^243423421012 is an apocalyptic number.

It is an amenable number.

243423421012 is a deficient number, since it is larger than the sum of its proper divisors (182567565766).

243423421012 is a wasteful number, since it uses less digits than its factorization.

243423421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60855855257 (or 60855855255 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 243423421012 its reverse (210124324342), we get a palindrome (453547745354).

The spelling of 243423421012 in words is "two hundred forty-three billion, four hundred twenty-three million, four hundred twenty-one thousand, twelve".