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12131133331023 = 3274718122635203
BaseRepresentation
bin1011000010000111111111…
…1001001001011001001111
31120221201120112120112022100
42300201333321021121033
53042224030113043043
641444544332250143
72361305535643650
oct260417771113117
946851515515270
1012131133331023
11395786a564343
12143b118010953
1369cc65315295
142dd2157c1527
1516085a500cd3
hexb087fe4964f

12131133331023 has 48 divisors (see below), whose sum is σ = 20565078782976. Its totient is φ = 6747101012160.

The previous prime is 12131133331003. The next prime is 12131133331043. The reversal of 12131133331023 is 32013333113121.

12131133331023 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 11 + 333 + 310 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (12131133331003) and next prime (12131133331043).

It is not a de Polignac number, because 12131133331023 - 224 = 12131116553807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131133331003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10781661 + ... + 11853542.

It is an arithmetic number, because the mean of its divisors is an integer number (428439141312).

Almost surely, 212131133331023 is an apocalyptic number.

12131133331023 is a deficient number, since it is larger than the sum of its proper divisors (8433945451953).

12131133331023 is a wasteful number, since it uses less digits than its factorization.

12131133331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22635444 (or 22635441 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 12131133331023 its reverse (32013333113121), we get a palindrome (44144466444144).

The spelling of 12131133331023 in words is "twelve trillion, one hundred thirty-one billion, one hundred thirty-three million, three hundred thirty-one thousand, twenty-three".

Divisors: 1 3 7 9 21 47 63 141 181 329 423 543 987 1267 1629 2961 3801 8507 11403 25521 59549 76563 178647 535941 22635203 67905609 158446421 203716827 475339263 1063854541 1426017789 3191563623 4096971743 7446981787 9574690869 12290915229 22340945361 28678802201 36872745687 67022836083 86036406603 192557671921 258109219809 577673015763 1347903703447 1733019047289 4043711110341 12131133331023