13342402100421 has 24 divisors (see below), whose sum is σ = 20313091052280. Its totient is φ = 8426171085696.

The previous prime is 13342402100411. The next prime is 13342402100453. The reversal of 13342402100421 is 12400120424331.

13342402100421 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 24 + 0 + 210 + 0 + 421 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5945253247521 + 7397148852900 = 2438289^2 + 2719770^2 .

It is not a de Polignac number, because 13342402100421 - 2²¹ = 13342400003269 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13342402100411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482253286 + ... + 482280951.

It is an arithmetic number, because the mean of its divisors is an integer number (846378793845).

Almost surely, 2^{13342402100421} is an apocalyptic number.

It is an amenable number.

13342402100421 is a deficient number, since it is larger than the sum of its proper divisors (6970688951859).

13342402100421 is a wasteful number, since it uses less digits than its factorization.

13342402100421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964534325 (or 964534322 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 13342402100421 its reverse (12400120424331), we get a palindrome (25742522524752).

The spelling of 13342402100421 in words is "thirteen trillion, three hundred forty-two billion, four hundred two million, one hundred thousand, four hundred twenty-one".