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2131113213213 = 319317681157019
BaseRepresentation
bin11111000000110000001…
…111101111110100011101
321112201202221111012000220
4133000300033233310131
5234404004440310323
64311004144111553
7306652654300005
oct37006017576435
97481687435026
102131113213213
1175188893a536
122a50356055b9
13125c69c64b3a
1475209b37005
153a67d9370e3
hex1f0303efd1d

2131113213213 has 32 divisors (see below), whose sum is σ = 3087942758400. Its totient is φ = 1302370099200.

The previous prime is 2131113213199. The next prime is 2131113213223. The reversal of 2131113213213 is 3123123111312.

It is not a de Polignac number, because 2131113213213 - 26 = 2131113213149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131113213223) 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 31 ways as a sum of consecutive naturals, for example, 13493818 + ... + 13650836.

It is an arithmetic number, because the mean of its divisors is an integer number (96498211200).

Almost surely, 22131113213213 is an apocalyptic number.

It is an amenable number.

2131113213213 is a deficient number, since it is larger than the sum of its proper divisors (956829545187).

2131113213213 is a wasteful number, since it uses less digits than its factorization.

2131113213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164753.

The product of its digits is 648, while the sum is 24.

Adding to 2131113213213 its reverse (3123123111312), we get a palindrome (5254236324525).

The spelling of 2131113213213 in words is "two trillion, one hundred thirty-one billion, one hundred thirteen million, two hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 19 31 57 93 589 1767 7681 23043 145939 157019 238111 437817 471057 714333 2983361 4524109 4867589 8950083 13572327 14602767 92484191 277452573 1206062939 3618188817 22915195841 37387951109 68745587523 112163853327 710371071071 2131113213213