421201202312 has 48 divisors (see below), whose sum is σ = 868286563200. Its totient is φ = 191408386400.

The previous prime is 421201202291. The next prime is 421201202333. The reversal of 421201202312 is 213202102124.

It is an interprime number because it is at equal distance from previous prime (421201202291) and next prime (421201202333).

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 11 ways as a sum of consecutive naturals, for example, 4083389 + ... + 4185267.

It is an arithmetic number, because the mean of its divisors is an integer number (18089303400).

Almost surely, 2^421201202312 is an apocalyptic number.

It is an amenable number.

421201202312 is an abundant number, since it is smaller than the sum of its proper divisors (447085360888).

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

421201202312 is a wasteful number, since it uses less digits than its factorization.

421201202312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106178 (or 106163 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 421201202312 its reverse (213202102124), we get a palindrome (634403304436).

The spelling of 421201202312 in words is "four hundred twenty-one billion, two hundred one million, two hundred two thousand, three hundred twelve".