13033334421 has 12 divisors (see below), whose sum is σ = 18839402400. Its totient is φ = 8682670440.

The previous prime is 13033334387. The next prime is 13033334453. The reversal of 13033334421 is 12443333031.

13033334421 is a `hidden beast` number, since 1 + 303 + 3 + 334 + 4 + 21 = 666.

It is not a de Polignac number, because 13033334421 - 2⁹ = 13033333909 is a prime.

It is a super-2 number, since 2×13033334421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033334621) 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, 504975 + ... + 530156.

It is an arithmetic number, because the mean of its divisors is an integer number (1569950200).

Almost surely, 2^13033334421 is an apocalyptic number.

It is an amenable number.

13033334421 is a deficient number, since it is larger than the sum of its proper divisors (5806067979).

13033334421 is a wasteful number, since it uses less digits than its factorization.

13033334421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036536 (or 1036533 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 13033334421 its reverse (12443333031), we get a palindrome (25476667452).

The spelling of 13033334421 in words is "thirteen billion, thirty-three million, three hundred thirty-four thousand, four hundred twenty-one".