420231511105424 has 20 divisors (see below), whose sum is σ = 842274364932060. Its totient is φ = 202870384671360.

The previous prime is 420231511105397. The next prime is 420231511105519. The reversal of 420231511105424 is 424501115132024.

It can be written as a sum of positive squares in 2 ways, for example, as 139483658502400 + 280747852603024 = 11810320^2 + 16755532^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452835679607 + ... + 452835680534.

It is an arithmetic number, because the mean of its divisors is an integer number (42113718246603).

Almost surely, 2^{420231511105424} is an apocalyptic number.

It is an amenable number.

420231511105424 is an abundant number, since it is smaller than the sum of its proper divisors (422042853826636).

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

420231511105424 is a wasteful number, since it uses less digits than its factorization.

420231511105424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905671360178 (or 905671360172 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 420231511105424 its reverse (424501115132024), we get a palindrome (844732626237448).

The spelling of 420231511105424 in words is "four hundred twenty trillion, two hundred thirty-one billion, five hundred eleven million, one hundred five thousand, four hundred twenty-four".