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12631231745371 = 192116734681603
BaseRepresentation
bin1011011111001111000000…
…0101001100110101011011
31122201112102020222012122201
42313303300011030311123
53123422230311322441
642510412513031031
72442401461222531
oct267636005146533
948645366865581
1012631231745371
11402a96a02aa08
121500025b55477
1370817396cba5
143194d7b02151
1516d879ac3c31
hexb7cf014cd5b

12631231745371 has 16 divisors (see below), whose sum is σ = 13378900647040. Its totient is φ = 11892018136320.

The previous prime is 12631231745369. The next prime is 12631231745417. The reversal of 12631231745371 is 17354713213621.

It is a cyclic number.

It is not a de Polignac number, because 12631231745371 - 21 = 12631231745369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12631231745351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357256 + ... + 5038858.

It is an arithmetic number, because the mean of its divisors is an integer number (836181290440).

Almost surely, 212631231745371 is an apocalyptic number.

12631231745371 is a deficient number, since it is larger than the sum of its proper divisors (747668901669).

12631231745371 is a wasteful number, since it uses less digits than its factorization.

12631231745371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682506.

The product of its digits is 635040, while the sum is 46.

Adding to 12631231745371 its reverse (17354713213621), we get a palindrome (29985944958992).

The spelling of 12631231745371 in words is "twelve trillion, six hundred thirty-one billion, two hundred thirty-one million, seven hundred forty-five thousand, three hundred seventy-one".

Divisors: 1 19 211 673 4009 12787 142003 2698057 4681603 88950457 987818233 3150718819 18768546427 59863657561 664801670809 12631231745371