1421341040421 has 6 divisors (see below), whose sum is σ = 2053048169510. Its totient is φ = 947560693608.

The previous prime is 1421341040407. The next prime is 1421341040437. The reversal of 1421341040421 is 1240401431241.

1421341040421 is a `hidden beast` number, since 1 + 4 + 2 + 134 + 104 + 0 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1379555957025 + 41785083396 = 1174545^2 + 204414^2 .

It is not a de Polignac number, because 1421341040421 - 2⁷ = 1421341040293 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 (1421341040321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78963391126 + ... + 78963391143.

Almost surely, 2^{1421341040421} is an apocalyptic number.

It is an amenable number.

1421341040421 is a deficient number, since it is larger than the sum of its proper divisors (631707129089).

1421341040421 is a wasteful number, since it uses less digits than its factorization.

1421341040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157926782275 (or 157926782272 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1421341040421 its reverse (1240401431241), we get a palindrome (2661742471662).

The spelling of 1421341040421 in words is "one trillion, four hundred twenty-one billion, three hundred forty-one million, forty thousand, four hundred twenty-one".