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13311230231023 = 101647491941411
BaseRepresentation
bin1100000110110100001100…
…1001100100000111101111
31202010112121112002101211221
43001231003021210013233
53221042344414343043
644151032244324211
72542463460044254
oct301550311440757
952115545071757
1013311230231023
11427229649585a
1215ab9800a3667
13757322321b2a
143403a484942b
151813c7c118ed
hexc1b432641ef

13311230231023 has 16 divisors (see below), whose sum is σ = 13466864355840. Its totient is φ = 13156072948000.

The previous prime is 13311230231021. The next prime is 13311230231071. The reversal of 13311230231023 is 32013203211331.

It is not a de Polignac number, because 13311230231023 - 21 = 13311230231021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311230231021) 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, 321421188 + ... + 321462598.

It is an arithmetic number, because the mean of its divisors is an integer number (841679022240).

Almost surely, 213311230231023 is an apocalyptic number.

13311230231023 is a deficient number, since it is larger than the sum of its proper divisors (155634124817).

13311230231023 is a wasteful number, since it uses less digits than its factorization.

13311230231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47078.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13311230231023 its reverse (32013203211331), we get a palindrome (45324433442354).

The spelling of 13311230231023 in words is "thirteen trillion, three hundred eleven billion, two hundred thirty million, two hundred thirty-one thousand, twenty-three".

Divisors: 1 101 647 4919 41411 65347 496819 3182593 4182511 26792917 203700709 321441893 2706084617 20573771609 131794358723 13311230231023