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13211131201 = 19368451457
BaseRepresentation
bin11000100110111000…
…11101110101000001
31021002201002000000121
430103130131311001
5204024022144301
610022532220241
7645245522332
oct142334356501
937081060017
1013211131201
11566a380454
12268846a681
1313270556c8
148d4808289
15524c593a1
hex31371dd41

13211131201 has 4 divisors (see below), whose sum is σ = 13279582852. Its totient is φ = 13142679552.

The previous prime is 13211131189. The next prime is 13211131223. The reversal of 13211131201 is 10213111231.

It is a happy number.

13211131201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6851866176 + 6359265025 = 82776^2 + 79745^2 .

It is a cyclic number.

It is not a de Polignac number, because 13211131201 - 25 = 13211131169 is a prime.

It is a super-2 number, since 2×132111312012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13211131291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34225536 + ... + 34225921.

It is an arithmetic number, because the mean of its divisors is an integer number (3319895713).

Almost surely, 213211131201 is an apocalyptic number.

It is an amenable number.

13211131201 is a deficient number, since it is larger than the sum of its proper divisors (68451651).

13211131201 is an equidigital number, since it uses as much as digits as its factorization.

13211131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68451650.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13211131201 its reverse (10213111231), we get a palindrome (23424242432).

The spelling of 13211131201 in words is "thirteen billion, two hundred eleven million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 193 68451457 13211131201