421112231 has 4 divisors (see below), whose sum is σ = 421153512. Its totient is φ = 421070952.

The previous prime is 421112227. The next prime is 421112249. The reversal of 421112231 is 132211124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 421112231 - 2² = 421112227 is a prime.

It is a super-2 number, since 2×421112231² = 354671022195594722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421112261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7001 + ... + 29853.

It is an arithmetic number, because the mean of its divisors is an integer number (105288378).

Almost surely, 2^421112231 is an apocalyptic number.

421112231 is a deficient number, since it is larger than the sum of its proper divisors (41281).

421112231 is a wasteful number, since it uses less digits than its factorization.

421112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41280.

The product of its digits is 96, while the sum is 17.

The square root of 421112231 is about 20521.0192485656. The cubic root of 421112231 is about 749.5477160479.

Adding to 421112231 its reverse (132211124), we get a palindrome (553323355).

The spelling of 421112231 in words is "four hundred twenty-one million, one hundred twelve thousand, two hundred thirty-one".