223142142321 has 48 divisors (see below), whose sum is σ = 377019202560. Its totient is φ = 124514379360.

The previous prime is 223142142317. The next prime is 223142142373. The reversal of 223142142321 is 123241241322.

223142142321 is a `hidden beast` number, since 2 + 2 + 3 + 1 + 421 + 4 + 232 + 1 = 666.

It is not a de Polignac number, because 223142142321 - 2² = 223142142317 is a prime.

It is a super-3 number, since 3×223142142321³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223142144321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15919206 + ... + 15933216.

It is an arithmetic number, because the mean of its divisors is an integer number (7854566720).

Almost surely, 2^223142142321 is an apocalyptic number.

223142142321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

223142142321 is a deficient number, since it is larger than the sum of its proper divisors (153877060239).

223142142321 is a wasteful number, since it uses less digits than its factorization.

223142142321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19946 (or 19943 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 223142142321 its reverse (123241241322), we get a palindrome (346383383643).

Subtracting from 223142142321 its reverse (123241241322), we obtain a palindrome (99900900999).

The spelling of 223142142321 in words is "two hundred twenty-three billion, one hundred forty-two million, one hundred forty-two thousand, three hundred twenty-one".