421013012 has 48 divisors (see below), whose sum is σ = 853493760. Its totient is φ = 177997152.

The previous prime is 421013011. The next prime is 421013017. The reversal of 421013012 is 210310124.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421013011) 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, 836753 + ... + 837255.

It is an arithmetic number, because the mean of its divisors is an integer number (17781120).

Almost surely, 2^421013012 is an apocalyptic number.

It is an amenable number.

421013012 is an abundant number, since it is smaller than the sum of its proper divisors (432480748).

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

421013012 is a wasteful number, since it uses less digits than its factorization.

421013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 421013012 is about 20518.6016092715. The cubic root of 421013012 is about 749.4888440015.

Adding to 421013012 its reverse (210310124), we get a palindrome (631323136).

The spelling of 421013012 in words is "four hundred twenty-one million, thirteen thousand, twelve".