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213112113211 = 2914949320091
BaseRepresentation
bin1100011001111001111…
…0001100100000111011
3202101002011001001101001
43012132132030200323
511442423200110321
6241522524105431
721253055034214
oct3063636144073
9671064031331
10213112113211
11824202609a8
1235376995277
13171339b604a
14a4596b240b
15582466ec91
hex319e78c83b

213112113211 has 8 divisors (see below), whose sum is σ = 221940414000. Its totient is φ = 204382452960.

The previous prime is 213112113199. The next prime is 213112113217. The reversal of 213112113211 is 112311211312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-213112113211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213112113217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24655725 + ... + 24664366.

It is an arithmetic number, because the mean of its divisors is an integer number (27742551750).

Almost surely, 2213112113211 is an apocalyptic number.

213112113211 is a deficient number, since it is larger than the sum of its proper divisors (8828300789).

213112113211 is a wasteful number, since it uses less digits than its factorization.

213112113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49320269.

The product of its digits is 72, while the sum is 19.

Adding to 213112113211 its reverse (112311211312), we get a palindrome (325423324523).

The spelling of 213112113211 in words is "two hundred thirteen billion, one hundred twelve million, one hundred thirteen thousand, two hundred eleven".

Divisors: 1 29 149 4321 49320091 1430282639 7348693559 213112113211