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23130100111 = 29797589659
BaseRepresentation
bin10101100010101010…
…010101000110001111
32012200222100211101111
4111202222111012033
5334332301200421
614343102152451
71446120415126
oct254252250617
965628324344
1023130100111
11989a37a618
124596282727
132248011391
141195cb6abd
1590595cee1
hex562a9518f

23130100111 has 4 divisors (see below), whose sum is σ = 23927689800. Its totient is φ = 22332510424.

The previous prime is 23130100093. The next prime is 23130100127. The reversal of 23130100111 is 11100103132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23130100111 is a prime.

It is a super-2 number, since 2×231301001112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23130100091 and 23130100100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398794801 + ... + 398794858.

It is an arithmetic number, because the mean of its divisors is an integer number (5981922450).

Almost surely, 223130100111 is an apocalyptic number.

23130100111 is a deficient number, since it is larger than the sum of its proper divisors (797589689).

23130100111 is an equidigital number, since it uses as much as digits as its factorization.

23130100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797589688.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 23130100111 its reverse (11100103132), we get a palindrome (34230203243).

The spelling of 23130100111 in words is "twenty-three billion, one hundred thirty million, one hundred thousand, one hundred eleven".

Divisors: 1 29 797589659 23130100111