141121343242421 has 2 divisors, whose sum is σ = 141121343242422. Its totient is φ = 141121343242420.

The previous prime is 141121343242357. The next prime is 141121343242441. The reversal of 141121343242421 is 124242343121141.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97391042316100 + 43730300926321 = 9868690^2 + 6612889^2 .

It is a cyclic number.

It is not a de Polignac number, because 141121343242421 - 2⁶ = 141121343242357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141121343242441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70560671621210 + 70560671621211.

It is an arithmetic number, because the mean of its divisors is an integer number (70560671621211).

Almost surely, 2^{141121343242421} is an apocalyptic number.

It is an amenable number.

141121343242421 is a deficient number, since it is larger than the sum of its proper divisors (1).

141121343242421 is an equidigital number, since it uses as much as digits as its factorization.

141121343242421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 35.

Adding to 141121343242421 its reverse (124242343121141), we get a palindrome (265363686363562).

The spelling of 141121343242421 in words is "one hundred forty-one trillion, one hundred twenty-one billion, three hundred forty-three million, two hundred forty-two thousand, four hundred twenty-one".