421223133231 has 12 divisors (see below), whose sum is σ = 608512256352. Its totient is φ = 280779033696.

The previous prime is 421223133223. The next prime is 421223133257. The reversal of 421223133231 is 132331322124.

421223133231 is a `hidden beast` number, since 4 + 2 + 1 + 22 + 313 + 323 + 1 = 666.

It is not a de Polignac number, because 421223133231 - 2³ = 421223133223 is a prime.

It is a super-2 number, since 2×421223133231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421223133195 and 421223133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421223133281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2958966 + ... + 3098051.

It is an arithmetic number, because the mean of its divisors is an integer number (50709354696).

Almost surely, 2^421223133231 is an apocalyptic number.

421223133231 is a deficient number, since it is larger than the sum of its proper divisors (187289123121).

421223133231 is a wasteful number, since it uses less digits than its factorization.

421223133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6064750 (or 6064747 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 421223133231 its reverse (132331322124), we get a palindrome (553554455355).

The spelling of 421223133231 in words is "four hundred twenty-one billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred thirty-one".