131022442403221 has 4 divisors (see below), whose sum is σ = 131070987216000. Its totient is φ = 130973897590444.

The previous prime is 131022442403107. The next prime is 131022442403233. The reversal of 131022442403221 is 122304244220131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131022442403221 - 2⁷ = 131022442403093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131022442407221) 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, 24272402341 + ... + 24272407738.

It is an arithmetic number, because the mean of its divisors is an integer number (32767746804000).

Almost surely, 2^{131022442403221} is an apocalyptic number.

It is an amenable number.

131022442403221 is a deficient number, since it is larger than the sum of its proper divisors (48544812779).

131022442403221 is an equidigital number, since it uses as much as digits as its factorization.

131022442403221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48544812778.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 131022442403221 its reverse (122304244220131), we get a palindrome (253326686623352).

The spelling of 131022442403221 in words is "one hundred thirty-one trillion, twenty-two billion, four hundred forty-two million, four hundred three thousand, two hundred twenty-one".