223021344231 has 12 divisors (see below), whose sum is σ = 368162219152. Its totient is φ = 127440768096.

The previous prime is 223021344199. The next prime is 223021344233. The reversal of 223021344231 is 132443120322.

223021344231 is a `hidden beast` number, since 2 + 2 + 3 + 0 + 213 + 442 + 3 + 1 = 666.

It is not a de Polignac number, because 223021344231 - 2⁵ = 223021344199 is a prime.

It is a super-2 number, since 2×223021344231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223021344195 and 223021344204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223021344233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1770010606 + ... + 1770010731.

Almost surely, 2^223021344231 is an apocalyptic number.

223021344231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

223021344231 is a deficient number, since it is larger than the sum of its proper divisors (145140874921).

223021344231 is a wasteful number, since it uses less digits than its factorization.

223021344231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540021350 (or 3540021347 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 223021344231 its reverse (132443120322), we get a palindrome (355464464553).

The spelling of 223021344231 in words is "two hundred twenty-three billion, twenty-one million, three hundred forty-four thousand, two hundred thirty-one".