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213312012211 = 248291859121
BaseRepresentation
bin1100011010101001100…
…0101111111110110011
3202101121002011222020201
43012222120233332303
511443330333342321
6241554424420031
721261033121144
oct3065230577663
9671532158221
10213312012211
1182513084a91
1235411917617
131716623638c
14a478069acb
155836ea9291
hex31aa62ffb3

213312012211 has 4 divisors (see below), whose sum is σ = 213313119624. Its totient is φ = 213310904800.

The previous prime is 213312012143. The next prime is 213312012223. The reversal of 213312012211 is 112210213312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213312012211 - 29 = 213312011699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213312012281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181270 + ... + 677851.

It is an arithmetic number, because the mean of its divisors is an integer number (53328279906).

Almost surely, 2213312012211 is an apocalyptic number.

213312012211 is a deficient number, since it is larger than the sum of its proper divisors (1107413).

213312012211 is an equidigital number, since it uses as much as digits as its factorization.

213312012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107412.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213312012211 its reverse (112210213312), we get a palindrome (325522225523).

The spelling of 213312012211 in words is "two hundred thirteen billion, three hundred twelve million, twelve thousand, two hundred eleven".

Divisors: 1 248291 859121 213312012211