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131321011012013 = 1966591114993097
BaseRepresentation
bin11101110110111110001110…
…001101101000000110101101
3122012222011111001021202000002
4131312332032031220012231
5114203030412304341023
61143144012320314045
736442426034064014
oct3566761615500655
9565864431252002
10131321011012013
113892aa23203759
121288aa84a72925
13583769764b7c4
14245dd84005a7b
15102ae62d93b28
hex776f8e3681ad

131321011012013 has 16 divisors (see below), whose sum is σ = 138267287640000. Its totient is φ = 124378202823552.

The previous prime is 131321011012001. The next prime is 131321011012027. The reversal of 131321011012013 is 310210110123131.

It is a cyclic number.

It is not a de Polignac number, because 131321011012013 - 230 = 131319937270189 is a prime.

It is a super-2 number, since 2×1313210110120132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321011012813) 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, 1410536081 + ... + 1410629177.

It is an arithmetic number, because the mean of its divisors is an integer number (8641705477500).

Almost surely, 2131321011012013 is an apocalyptic number.

It is an amenable number.

131321011012013 is a deficient number, since it is larger than the sum of its proper divisors (6946276627987).

131321011012013 is a wasteful number, since it uses less digits than its factorization.

131321011012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110924.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 131321011012013 its reverse (310210110123131), we get a palindrome (441531121135144).

The spelling of 131321011012013 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, eleven million, twelve thousand, thirteen".

Divisors: 1 19 6659 11149 93097 126521 211831 1768843 74241191 619932923 1037938453 1410582629 11778725537 19720830607 6911632158527 131321011012013