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12021023123333 = 72278987962353
BaseRepresentation
bin1010111011101101110011…
…0100000010011110000101
31120120012100202210102101222
42232323130310002132011
53033423023404421313
641322214244330125
72350330105425200
oct256733464023605
946505322712358
1012021023123333
1139150a61905a4
1214219083a3945
1369276803c633
142d7b6bb10937
1515ca638d9208
hexaeedcd02785

12021023123333 has 12 divisors (see below), whose sum is σ = 13988653156620. Its totient is φ = 10300039569792.

The previous prime is 12021023123309. The next prime is 12021023123363. The reversal of 12021023123333 is 33332132012021.

It can be written as a sum of positive squares in 2 ways, for example, as 2927770811329 + 9093252312004 = 1711073^2 + 3015502^2 .

It is not a de Polignac number, because 12021023123333 - 26 = 12021023123269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021023123363) 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 11 ways as a sum of consecutive naturals, for example, 43844516 + ... + 44117837.

It is an arithmetic number, because the mean of its divisors is an integer number (1165721096385).

Almost surely, 212021023123333 is an apocalyptic number.

It is an amenable number.

12021023123333 is a deficient number, since it is larger than the sum of its proper divisors (1967630033287).

12021023123333 is an equidigital number, since it uses as much as digits as its factorization.

12021023123333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87965156 (or 87965149 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 12021023123333 its reverse (33332132012021), we get a palindrome (45353155135354).

The spelling of 12021023123333 in words is "twelve trillion, twenty-one billion, twenty-three million, one hundred twenty-three thousand, three hundred thirty-three".

Divisors: 1 7 49 2789 19523 136661 87962353 615736471 4310155297 245327002517 1717289017619 12021023123333