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12121112023013 = 717115878790721
BaseRepresentation
bin1011000001100010101010…
…0100111000111111100101
31120220202201010201100002102
42300120222210320333211
53042043014134214023
641440210105021445
72360502312144350
oct260305244707745
946822633640072
1012121112023013
113953597816304
12143919ba84885
1369c0290a7226
142dc9448b3297
15160470834628
hexb062a938fe5

12121112023013 has 16 divisors (see below), whose sum is σ = 14668831661184. Its totient is φ = 9777531064320.

The previous prime is 12121112022989. The next prime is 12121112023037. The reversal of 12121112023013 is 31032021112121.

12121112023013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12121112022989) and next prime (12121112023037).

It is a cyclic number.

It is not a de Polignac number, because 12121112023013 - 214 = 12121112006629 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 (12121112023093) 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, 3016508 + ... + 5774213.

It is an arithmetic number, because the mean of its divisors is an integer number (916801978824).

Almost surely, 212121112023013 is an apocalyptic number.

It is an amenable number.

12121112023013 is a deficient number, since it is larger than the sum of its proper divisors (2547719638171).

12121112023013 is a wasteful number, since it uses less digits than its factorization.

12121112023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802332.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12121112023013 its reverse (31032021112121), we get a palindrome (43153133135134).

The spelling of 12121112023013 in words is "twelve trillion, one hundred twenty-one billion, one hundred twelve million, twenty-three thousand, thirteen".

Divisors: 1 7 17 119 11587 81109 196979 1378853 8790721 61535047 149442257 1046095799 101858084227 713006589589 1731587431859 12121112023013