1341212420021 has 4 divisors (see below), whose sum is σ = 1359585192972. Its totient is φ = 1322839647072.

The previous prime is 1341212419997. The next prime is 1341212420047. The reversal of 1341212420021 is 1200242121431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 376811822500 + 964400597521 = 613850^2 + 982039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341212420021 - 2¹⁴ = 1341212403637 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 (1341212420071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9186386366 + ... + 9186386511.

It is an arithmetic number, because the mean of its divisors is an integer number (339896298243).

Almost surely, 2^{1341212420021} is an apocalyptic number.

It is an amenable number.

1341212420021 is a deficient number, since it is larger than the sum of its proper divisors (18372772951).

1341212420021 is an equidigital number, since it uses as much as digits as its factorization.

1341212420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18372772950.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1341212420021 its reverse (1200242121431), we get a palindrome (2541454541452).

The spelling of 1341212420021 in words is "one trillion, three hundred forty-one billion, two hundred twelve million, four hundred twenty thousand, twenty-one".