421534112443042 has 8 divisors (see below), whose sum is σ = 632301293472300. Its totient is φ = 210767014618944.

The previous prime is 421534112443039. The next prime is 421534112443057. The reversal of 421534112443042 is 240344211435124.

It can be written as a sum of positive squares in 2 ways, for example, as 421393405681161 + 140706761881 = 20527869^2 + 375109^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 421534112442986 and 421534112443004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6041067 + ... + 29657422.

Almost surely, 2^{421534112443042} is an apocalyptic number.

421534112443042 is a deficient number, since it is larger than the sum of its proper divisors (210767181029258).

421534112443042 is a wasteful number, since it uses less digits than its factorization.

421534112443042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41602580.

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 421534112443042 its reverse (240344211435124), we get a palindrome (661878323878166).

The spelling of 421534112443042 in words is "four hundred twenty-one trillion, five hundred thirty-four billion, one hundred twelve million, four hundred forty-three thousand, forty-two".