421112321512 has 16 divisors (see below), whose sum is σ = 808843788900. Its totient is φ = 205420644480.

The previous prime is 421112321507. The next prime is 421112321549. The reversal of 421112321512 is 215123211124.

It can be written as a sum of positive squares in 2 ways, for example, as 333120591556 + 87991729956 = 577166^2 + 296634^2 .

It is a super-2 number, since 2×421112321512² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641939187 + ... + 641939842.

Almost surely, 2^421112321512 is an apocalyptic number.

It is an amenable number.

421112321512 is a deficient number, since it is larger than the sum of its proper divisors (387731467388).

421112321512 is a wasteful number, since it uses less digits than its factorization.

421112321512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283879076 (or 1283879072 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

Adding to 421112321512 its reverse (215123211124), we get a palindrome (636235532636).

The spelling of 421112321512 in words is "four hundred twenty-one billion, one hundred twelve million, three hundred twenty-one thousand, five hundred twelve".