321223224120131 has 4 divisors (see below), whose sum is σ = 321415919517192. Its totient is φ = 321030528723072.

The previous prime is 321223224120119. The next prime is 321223224120193. The reversal of 321223224120131 is 131021422322123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321223224120131 - 2⁶ = 321223224120067 is a prime.

It is a super-2 number, since 2×321223224120131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321223224120094 and 321223224120103.

It is not an unprimeable number, because it can be changed into a prime (321223224125131) 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, 96347696030 + ... + 96347699363.

It is an arithmetic number, because the mean of its divisors is an integer number (80353979879298).

Almost surely, 2^{321223224120131} is an apocalyptic number.

321223224120131 is a deficient number, since it is larger than the sum of its proper divisors (192695397061).

321223224120131 is a wasteful number, since it uses less digits than its factorization.

321223224120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192695397060.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 321223224120131 its reverse (131021422322123), we get a palindrome (452244646442254).

The spelling of 321223224120131 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, two hundred twenty-four million, one hundred twenty thousand, one hundred thirty-one".