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1311420230422 = 261103237104123
BaseRepresentation
bin10011000101010110101…
…111001010101100010110
311122101000010112021020021
4103011112233022230112
5132441242034333142
62442242542455354
7163514134014661
oct23052657125426
94571003467207
101311420230422
11466196593355
121921b3b9455a
13968880c7633
144768a1a86d8
15241a6822267
hex13156bcab16

1311420230422 has 16 divisors (see below), whose sum is σ = 1999416953232. Its totient is φ = 644948327520.

The previous prime is 1311420230377. The next prime is 1311420230423. The reversal of 1311420230422 is 2240320241131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311420230423) 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, 12542853 + ... + 12646975.

It is an arithmetic number, because the mean of its divisors is an integer number (124963559577).

Almost surely, 21311420230422 is an apocalyptic number.

1311420230422 is a deficient number, since it is larger than the sum of its proper divisors (687996722810).

1311420230422 is a wasteful number, since it uses less digits than its factorization.

1311420230422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207423.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1311420230422 its reverse (2240320241131), we get a palindrome (3551740471553).

The spelling of 1311420230422 in words is "one trillion, three hundred eleven billion, four hundred twenty million, two hundred thirty thousand, four hundred twenty-two".

Divisors: 1 2 61 122 103237 104123 206474 208246 6297457 6351503 12594914 12703006 10749346151 21498692302 655710115211 1311420230422