Search a number
-
+
13211101211 = 7111259136277
BaseRepresentation
bin11000100110111000…
…10110100000011011
31021002201000110212212
430103130112200123
5204024020214321
610022531425335
7645245336030
oct142334264033
937081013785
1013211101211
11566a35a970
12268845524b
131327044b69
148d47db387
15524c5055b
hex31371681b

13211101211 has 16 divisors (see below), whose sum is σ = 16484186880. Its totient is φ = 10286112480.

The previous prime is 13211101207. The next prime is 13211101237. The reversal of 13211101211 is 11210111231.

It is not a de Polignac number, because 13211101211 - 22 = 13211101207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13211101511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28805 + ... + 165081.

It is an arithmetic number, because the mean of its divisors is an integer number (1030261680).

Almost surely, 213211101211 is an apocalyptic number.

13211101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13211101211 is a deficient number, since it is larger than the sum of its proper divisors (3273085669).

13211101211 is a wasteful number, since it uses less digits than its factorization.

13211101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137554.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 13211101211 its reverse (11210111231), we get a palindrome (24421212442).

The spelling of 13211101211 in words is "thirteen billion, two hundred eleven million, one hundred one thousand, two hundred eleven".

Divisors: 1 7 11 77 1259 8813 13849 96943 136277 953939 1499047 10493329 171572743 1201009201 1887300173 13211101211