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13201133421 = 37628625401
BaseRepresentation
bin11000100101101100…
…10100111101101101
31021002000021001122110
430102312110331231
5204013442232141
610021534034233
7645064532310
oct142266247555
937060231573
1013201133421
115664771a23
122685048979
131324c64b68
148d3364977
15523e31e16
hex312d94f6d

13201133421 has 8 divisors (see below), whose sum is σ = 20116012864. Its totient is φ = 7543504800.

The previous prime is 13201133411. The next prime is 13201133513. The reversal of 13201133421 is 12433110231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13201133421 - 25 = 13201133389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 628625401 = 13201133421 / (1 + 3 + 2 + 0 + 1 + 1 + 3 + 3 + 4 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201133411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314312680 + ... + 314312721.

It is an arithmetic number, because the mean of its divisors is an integer number (2514501608).

Almost surely, 213201133421 is an apocalyptic number.

It is an amenable number.

13201133421 is a deficient number, since it is larger than the sum of its proper divisors (6914879443).

13201133421 is an equidigital number, since it uses as much as digits as its factorization.

13201133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628625411.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13201133421 its reverse (12433110231), we get a palindrome (25634243652).

The spelling of 13201133421 in words is "thirteen billion, two hundred one million, one hundred thirty-three thousand, four hundred twenty-one".

Divisors: 1 3 7 21 628625401 1885876203 4400377807 13201133421