223221031423 has 16 divisors (see below), whose sum is σ = 249042416896. Its totient is φ = 198683435520.

The previous prime is 223221031421. The next prime is 223221031433. The reversal of 223221031423 is 324130122322.

It is a cyclic number.

It is not a de Polignac number, because 223221031423 - 2¹ = 223221031421 is a prime.

It is a super-3 number, since 3×223221031423³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223221031421) 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, 888186 + ... + 1111447.

It is an arithmetic number, because the mean of its divisors is an integer number (15565151056).

Almost surely, 2^223221031423 is an apocalyptic number.

223221031423 is a deficient number, since it is larger than the sum of its proper divisors (25821385473).

223221031423 is a wasteful number, since it uses less digits than its factorization.

223221031423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999954.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 223221031423 its reverse (324130122322), we get a palindrome (547351153745).

The spelling of 223221031423 in words is "two hundred twenty-three billion, two hundred twenty-one million, thirty-one thousand, four hundred twenty-three".