421312110 has 32 divisors (see below), whose sum is σ = 1011712032. Its totient is φ = 112287360.

The previous prime is 421312093. The next prime is 421312117. The reversal of 421312110 is 11213124.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 421312110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421312117) 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, 81400 + ... + 86420.

It is an arithmetic number, because the mean of its divisors is an integer number (31616001).

Almost surely, 2^421312110 is an apocalyptic number.

421312110 is an abundant number, since it is smaller than the sum of its proper divisors (590399922).

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

421312110 is a wasteful number, since it uses less digits than its factorization.

421312110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7828.

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

The square root of 421312110 is about 20525.8887749106. Note that the first 3 decimals coincide. The cubic root of 421312110 is about 749.6662870918. Note that the first 3 decimals are identical.

Adding to 421312110 its reverse (11213124), we get a palindrome (432525234).

The spelling of 421312110 in words is "four hundred twenty-one million, three hundred twelve thousand, one hundred ten".