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2111302423213 = 172231625319543
BaseRepresentation
bin11110101110010011011…
…011100101001010101101
321110211122021222210002221
4132232103123211022231
5234042421410020323
64253530254115341
7305352020330524
oct36562333451255
97424567883087
102111302423213
117444421a3815
122a1226aabb51
131241308371a9
147428aa254bb
1539dbe5e355d
hex1eb936e52ad

2111302423213 has 24 divisors (see below), whose sum is σ = 2340579120768. Its totient is φ = 1900497958656.

The previous prime is 2111302423177. The next prime is 2111302423231. The reversal of 2111302423213 is 3123242031112.

It is not a de Polignac number, because 2111302423213 - 225 = 2111268868781 is a prime.

It is a super-2 number, since 2×21113024232132 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111309423213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108023920 + ... + 108043462.

It is an arithmetic number, because the mean of its divisors is an integer number (97524130032).

Almost surely, 22111302423213 is an apocalyptic number.

2111302423213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2111302423213 is a deficient number, since it is larger than the sum of its proper divisors (229276697555).

2111302423213 is a wasteful number, since it uses less digits than its factorization.

2111302423213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35853 (or 35836 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 2111302423213 its reverse (3123242031112), we get a palindrome (5234544454325).

The spelling of 2111302423213 in words is "two trillion, one hundred eleven billion, three hundred two million, four hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 17 23 289 391 6647 16253 19543 276301 332231 373819 449489 4697117 5647927 6354923 7641313 108033691 129902321 317632379 5399750443 7305544717 91795757531 124194260189 2111302423213