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1213123023006 = 23202187170501
BaseRepresentation
bin10001101001110011110…
…001000101000010011110
311021222021121222202021120
4101221303301011002132
5124333433443214011
62325145004311410
7153434214362226
oct21516361050236
94258247882246
101213123023006
11428534358554
12177140542566
138a52130158b
1442a03359086
1521851d3da06
hex11a73c4509e

1213123023006 has 8 divisors (see below), whose sum is σ = 2426246046024. Its totient is φ = 404374341000.

The previous prime is 1213123023001. The next prime is 1213123023029. The reversal of 1213123023006 is 6003203213121.

It is a sphenic number, since it is the product of 3 distinct primes.

1213123023006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213123023001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101093585245 + ... + 101093585256.

It is an arithmetic number, because the mean of its divisors is an integer number (303280755753).

Almost surely, 21213123023006 is an apocalyptic number.

1213123023006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213123023006 is a wasteful number, since it uses less digits than its factorization.

1213123023006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202187170506.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1213123023006 its reverse (6003203213121), we get a palindrome (7216326236127).

The spelling of 1213123023006 in words is "one trillion, two hundred thirteen billion, one hundred twenty-three million, twenty-three thousand, six".

Divisors: 1 2 3 6 202187170501 404374341002 606561511503 1213123023006