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1312130022303 = 31731472375707
BaseRepresentation
bin10011000110000001000…
…010110011101110011111
311122102211121010102122110
4103012001002303232133
5132444220241203203
62442441220045103
7163540543111032
oct23060102635637
94572747112573
101312130022303
11466520210511
12192371833793
139696c184929
1447716571019
15241e8ccad03
hex131810b3b9f

1312130022303 has 48 divisors (see below), whose sum is σ = 1953729690624. Its totient is φ = 779785317120.

The previous prime is 1312130022253. The next prime is 1312130022311. The reversal of 1312130022303 is 3032200312131.

It is not a de Polignac number, because 1312130022303 - 212 = 1312130018207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312130022303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312130022323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3304576 + ... + 3680282.

It is an arithmetic number, because the mean of its divisors is an integer number (40702701888).

Almost surely, 21312130022303 is an apocalyptic number.

1312130022303 is a deficient number, since it is larger than the sum of its proper divisors (641599668321).

1312130022303 is a wasteful number, since it uses less digits than its factorization.

1312130022303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375852 (or 375805 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1312130022303 its reverse (3032200312131), we get a palindrome (4344330334434).

The spelling of 1312130022303 in words is "one trillion, three hundred twelve billion, one hundred thirty million, twenty-two thousand, three hundred three".

Divisors: 1 3 17 31 47 51 93 141 527 799 1457 1581 2209 2397 4371 6627 24769 37553 68479 74307 112659 205437 375707 1127121 1164143 3492429 6387019 11646917 17658229 19161057 34940751 52974687 197997589 300189893 547405099 593992767 829936763 900569679 1642215297 2489810289 9305886683 14108924971 25728039653 27917660049 42326774913 77184118959 437376674101 1312130022303