141221112112321 has 2 divisors, whose sum is σ = 141221112112322. Its totient is φ = 141221112112320.

The previous prime is 141221112112291. The next prime is 141221112112349. The reversal of 141221112112321 is 123211211122141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130342751400625 + 10878360711696 = 11416775^2 + 3298236^2 .

It is an emirp because it is prime and its reverse (123211211122141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141221112112321 - 2⁷ = 141221112112193 is a prime.

It is not a weakly prime, because it can be changed into another prime (141221112112361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70610556056160 + 70610556056161.

It is an arithmetic number, because the mean of its divisors is an integer number (70610556056161).

Almost surely, 2^{141221112112321} is an apocalyptic number.

It is an amenable number.

141221112112321 is a deficient number, since it is larger than the sum of its proper divisors (1).

141221112112321 is an equidigital number, since it uses as much as digits as its factorization.

141221112112321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 25.

Adding to 141221112112321 its reverse (123211211122141), we get a palindrome (264432323234462).

The spelling of 141221112112321 in words is "one hundred forty-one trillion, two hundred twenty-one billion, one hundred twelve million, one hundred twelve thousand, three hundred twenty-one".