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213120001211 = 13192929752897
BaseRepresentation
bin1100011001111011110…
…0010010010010111011
3202101002200212210200012
43012132330102102323
511442432210014321
6241523405132135
721253212056255
oct3063674222273
9671080783605
10213120001211
1182424759307
123537955a04b
13171355184c0
14a45a766cd5
1558251cc05b
hex319ef124bb

213120001211 has 16 divisors (see below), whose sum is σ = 249924343200. Its totient is φ = 179945515008.

The previous prime is 213120001181. The next prime is 213120001267. The reversal of 213120001211 is 112100021312.

It is a cyclic number.

It is not a de Polignac number, because 213120001211 - 222 = 213115806907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213120001511) 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, 14869286 + ... + 14883611.

It is an arithmetic number, because the mean of its divisors is an integer number (15620271450).

Almost surely, 2213120001211 is an apocalyptic number.

213120001211 is a deficient number, since it is larger than the sum of its proper divisors (36804341989).

213120001211 is a wasteful number, since it uses less digits than its factorization.

213120001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29752958.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 213120001211 its reverse (112100021312), we get a palindrome (325220022523).

The spelling of 213120001211 in words is "two hundred thirteen billion, one hundred twenty million, one thousand, two hundred eleven".

Divisors: 1 13 19 29 247 377 551 7163 29752897 386787661 565305043 862834013 7348965559 11216842169 16393846247 213120001211