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12020300030023 = 28552674209869
BaseRepresentation
bin1010111011101011000110…
…1101101010000001000111
31120120010111101011110212021
42232322301231222001013
53033420033301430043
641322014414104011
72350303145302345
oct256726155520107
946503441143767
1012020300030023
113914864aa891a
1214217461ab007
136926812a5b7c
142d7adda84995
1515ca201a43ed
hexaeeb1b6a047

12020300030023 has 4 divisors (see below), whose sum is σ = 12020307095160. Its totient is φ = 12020292964888.

The previous prime is 12020300030003. The next prime is 12020300030029. The reversal of 12020300030023 is 32003000302021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12020300030023 is a prime.

It is a super-2 number, since 2×120203000300232 (a number of 27 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 = 12020300029979 and 12020300030006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020300030029) 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 3 ways as a sum of consecutive naturals, for example, 750333 + ... + 4960201.

It is an arithmetic number, because the mean of its divisors is an integer number (3005076773790).

Almost surely, 212020300030023 is an apocalyptic number.

12020300030023 is a deficient number, since it is larger than the sum of its proper divisors (7065137).

12020300030023 is an equidigital number, since it uses as much as digits as its factorization.

12020300030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065136.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 12020300030023 its reverse (32003000302021), we get a palindrome (44023300332044).

The spelling of 12020300030023 in words is "twelve trillion, twenty billion, three hundred million, thirty thousand, twenty-three".

Divisors: 1 2855267 4209869 12020300030023