420305315123512 has 64 divisors (see below), whose sum is σ = 969945437119680. Its totient is φ = 166272899668992.

The previous prime is 420305315123509. The next prime is 420305315123543. The reversal of 420305315123512 is 215321513503024.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 68150458 + ... + 74061430.

It is an arithmetic number, because the mean of its divisors is an integer number (15155397454995).

Almost surely, 2^{420305315123512} is an apocalyptic number.

It is an amenable number.

420305315123512 is an abundant number, since it is smaller than the sum of its proper divisors (549640121996168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420305315123512 is a wasteful number, since it uses less digits than its factorization.

420305315123512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008672 (or 6008668 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 420305315123512 its reverse (215321513503024), we get a palindrome (635626828626536).

The spelling of 420305315123512 in words is "four hundred twenty trillion, three hundred five billion, three hundred fifteen million, one hundred twenty-three thousand, five hundred twelve".