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23043110111 = 719293591319
BaseRepresentation
bin10101011101011110…
…011111010011011111
32012110220200021112122
4111131132133103133
5334143014010421
614330313453155
71444013130020
oct253536372337
965426607478
1023043110111
11985526475a
1245711111bb
132232ca44c8
141188510c47
158ecec82ab
hex55d79f4df

23043110111 has 16 divisors (see below), whose sum is σ = 27815692800. Its totient is φ = 18647804448.

The previous prime is 23043110107. The next prime is 23043110113. The reversal of 23043110111 is 11101134032.

It is not a de Polignac number, because 23043110111 - 22 = 23043110107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23043110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043110113) 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, 256691 + ... + 334628.

It is an arithmetic number, because the mean of its divisors is an integer number (1738480800).

Almost surely, 223043110111 is an apocalyptic number.

23043110111 is a deficient number, since it is larger than the sum of its proper divisors (4772582689).

23043110111 is a wasteful number, since it uses less digits than its factorization.

23043110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591638.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23043110111 its reverse (11101134032), we get a palindrome (34144244143).

The spelling of 23043110111 in words is "twenty-three billion, forty-three million, one hundred ten thousand, one hundred eleven".

Divisors: 1 7 19 133 293 2051 5567 38969 591319 4139233 11235061 78645427 173256467 1212795269 3291872873 23043110111