421031112 has 64 divisors (see below), whose sum is σ = 1128012480. Its totient is φ = 130486272.

The previous prime is 421031111. The next prime is 421031167. The reversal of 421031112 is 211130124.

It is a junction number, because it is equal to n+sod(n) for n = 421031091 and 421031100.

It is not an unprimeable number, because it can be changed into a prime (421031111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27648 + ... + 40080.

It is an arithmetic number, because the mean of its divisors is an integer number (17625195).

Almost surely, 2^421031112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421031112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564006240).

421031112 is an abundant number, since it is smaller than the sum of its proper divisors (706981368).

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

421031112 is a wasteful number, since it uses less digits than its factorization.

421031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542 (or 12538 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 421031112 is about 20519.0426677270. The cubic root of 421031112 is about 749.4995844088.

Adding to 421031112 its reverse (211130124), we get a palindrome (632161236).

The spelling of 421031112 in words is "four hundred twenty-one million, thirty-one thousand, one hundred twelve".