13332001421 has 12 divisors (see below), whose sum is σ = 13487067072. Its totient is φ = 13178684376.

The previous prime is 13332001411. The next prime is 13332001433. The reversal of 13332001421 is 12410023331.

It is not a de Polignac number, because 13332001421 - 2¹⁰ = 13332000397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13332001393 and 13332001402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13332001411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10046060 + ... + 10047386.

It is an arithmetic number, because the mean of its divisors is an integer number (1123922256).

Almost surely, 2^13332001421 is an apocalyptic number.

It is an amenable number.

13332001421 is a deficient number, since it is larger than the sum of its proper divisors (155065651).

13332001421 is an equidigital number, since it uses as much as digits as its factorization.

13332001421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13332001421 its reverse (12410023331), we get a palindrome (25742024752).

The spelling of 13332001421 in words is "thirteen billion, three hundred thirty-two million, one thousand, four hundred twenty-one".