1421877216013 has 4 divisors (see below), whose sum is σ = 1421879661180. Its totient is φ = 1421874770848.

The previous prime is 1421877215999. The next prime is 1421877216017. The reversal of 1421877216013 is 3106127781241.

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 943204188969 + 478673027044 = 971187^2 + 691862^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421877216013 - 2⁹ = 1421877215501 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 (1421877216017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206481 + ... + 1698937.

It is an arithmetic number, because the mean of its divisors is an integer number (355469915295).

Almost surely, 2^{1421877216013} is an apocalyptic number.

It is an amenable number.

1421877216013 is a deficient number, since it is larger than the sum of its proper divisors (2445167).

1421877216013 is an equidigital number, since it uses as much as digits as its factorization.

1421877216013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445166.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 1421877216013 in words is "one trillion, four hundred twenty-one billion, eight hundred seventy-seven million, two hundred sixteen thousand, thirteen".