13421310302421 has 48 divisors (see below), whose sum is σ = 23761945434240. Its totient is φ = 7128583562880.

The previous prime is 13421310302371. The next prime is 13421310302431. The reversal of 13421310302421 is 12420301312431.

13421310302421 is a `hidden beast` number, since 1 + 3 + 4 + 2 + 1 + 310 + 302 + 42 + 1 = 666.

It is not a de Polignac number, because 13421310302421 - 2²³ = 13421301913813 is a prime.

It is a super-2 number, since 2×13421310302421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421310302431) 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 47 ways as a sum of consecutive naturals, for example, 105714450 + ... + 105841331.

It is an arithmetic number, because the mean of its divisors is an integer number (495040529880).

Almost surely, 2^{13421310302421} is an apocalyptic number.

It is an amenable number.

13421310302421 is a deficient number, since it is larger than the sum of its proper divisors (10340635131819).

13421310302421 is a wasteful number, since it uses less digits than its factorization.

13421310302421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211555866 (or 211555863 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 13421310302421 its reverse (12420301312431), we get a palindrome (25841611614852).

The spelling of 13421310302421 in words is "thirteen trillion, four hundred twenty-one billion, three hundred ten million, three hundred two thousand, four hundred twenty-one".