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1311310321030 = 25257510237479
BaseRepresentation
bin10011000101010000001…
…011111001010110000110
311122100201110201021220001
4103011100023321112012
5132441030420233110
62442224015031514
7163511330551303
oct23052013712606
94570643637801
101311310321030
1146613a543846
1219218320b59a
139686b3c45a8
14476797580aa
152419bd6163a
hex131502f9586

1311310321030 has 16 divisors (see below), whose sum is σ = 2369542857120. Its totient is φ = 522483177472.

The previous prime is 1311310321003. The next prime is 1311310321103. The reversal of 1311310321030 is 301230131131.

It is a junction number, because it is equal to n+sod(n) for n = 1311310320989 and 1311310321007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255116170 + ... + 255121309.

It is an arithmetic number, because the mean of its divisors is an integer number (148096428570).

Almost surely, 21311310321030 is an apocalyptic number.

1311310321030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311310321030 is a deficient number, since it is larger than the sum of its proper divisors (1058232536090).

1311310321030 is a wasteful number, since it uses less digits than its factorization.

1311310321030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510237743.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1311310321030 its reverse (301230131131), we get a palindrome (1612540452161).

The spelling of 1311310321030 in words is "one trillion, three hundred eleven billion, three hundred ten million, three hundred twenty-one thousand, thirty".

Divisors: 1 2 5 10 257 514 1285 2570 510237479 1020474958 2551187395 5102374790 131131032103 262262064206 655655160515 1311310321030