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1213132120303 = 17384591855501
BaseRepresentation
bin10001101001110100010…
…011110010000011101111
311021222022021002221102111
4101221310103302003233
5124333443310322203
62325145531304451
7153434354612035
oct21516423620357
94258267087374
101213132120303
11428539501484
121771435ab127
138a5231682ac
1442a04646555
1521852a3926d
hex11a744f20ef

1213132120303 has 8 divisors (see below), whose sum is σ = 1284526924560. Its totient is φ = 1141741104000.

The previous prime is 1213132120301. The next prime is 1213132120307. The reversal of 1213132120303 is 3030212313121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213132120303 - 21 = 1213132120301 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 (1213132120301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273948 + ... + 1581553.

It is an arithmetic number, because the mean of its divisors is an integer number (160565865570).

Almost surely, 21213132120303 is an apocalyptic number.

1213132120303 is a deficient number, since it is larger than the sum of its proper divisors (71394804257).

1213132120303 is a wasteful number, since it uses less digits than its factorization.

1213132120303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893977.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1213132120303 its reverse (3030212313121), we get a palindrome (4243344433424).

The spelling of 1213132120303 in words is "one trillion, two hundred thirteen billion, one hundred thirty-two million, one hundred twenty thousand, three hundred three".

Divisors: 1 17 38459 653803 1855501 31543517 71360712959 1213132120303