13402442130021 has 24 divisors (see below), whose sum is σ = 22126288766400. Its totient is φ = 7657976762496.

The previous prime is 13402442130019. The next prime is 13402442130029. The reversal of 13402442130021 is 12003124420431.

13402442130021 is a `hidden beast` number, since 1 + 3 + 402 + 44 + 213 + 0 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 13402442130021 - 2¹ = 13402442130019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402442130029) 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 23 ways as a sum of consecutive naturals, for example, 6933255 + ... + 8653028.

It is an arithmetic number, because the mean of its divisors is an integer number (921928698600).

Almost surely, 2^{13402442130021} is an apocalyptic number.

It is an amenable number.

13402442130021 is a deficient number, since it is larger than the sum of its proper divisors (8723846636379).

13402442130021 is a wasteful number, since it uses less digits than its factorization.

13402442130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15599945 (or 15599942 counting only the distinct ones).

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

Adding to 13402442130021 its reverse (12003124420431), we get a palindrome (25405566550452).

The spelling of 13402442130021 in words is "thirteen trillion, four hundred two billion, four hundred forty-two million, one hundred thirty thousand, twenty-one".