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12130313131123 = 11191971907154493
BaseRepresentation
bin1011000010000100111100…
…0000010101010001110011
31120221122110101020001120021
42300201033000111101303
53042220340130143443
641444331112424311
72361246316236415
oct260411700252163
946848411201507
1012130313131123
113957489586a90
12143ab293a8097
1369cb6440bcb5
142dd1788b89b5
1516080d4d89ed
hexb084f015473

12130313131123 has 32 divisors (see below), whose sum is σ = 14007686711040. Its totient is φ = 10388610610560.

The previous prime is 12130313131099. The next prime is 12130313131127. The reversal of 12130313131123 is 32113131303121.

It is a cyclic number.

It is not a de Polignac number, because 12130313131123 - 217 = 12130313000051 is a prime.

It is a super-2 number, since 2×121303131311232 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12130313131127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78439665 + ... + 78594157.

It is an arithmetic number, because the mean of its divisors is an integer number (437740209720).

Almost surely, 212130313131123 is an apocalyptic number.

12130313131123 is a deficient number, since it is larger than the sum of its proper divisors (1877373579917).

12130313131123 is a wasteful number, since it uses less digits than its factorization.

12130313131123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156627.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 12130313131123 its reverse (32113131303121), we get a palindrome (44243444434244).

The spelling of 12130313131123 in words is "twelve trillion, one hundred thirty billion, three hundred thirteen million, one hundred thirty-one thousand, one hundred twenty-three".

Divisors: 1 11 19 197 209 1907 2167 3743 20977 36233 41173 154493 375679 398563 1699423 2935367 4132469 7137901 30435121 32289037 78516911 294618151 334786331 578267299 3240799661 5597744869 6360940289 58039775747 61575193559 638437533217 1102755739193 12130313131123