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12131465530551 = 37575341904681
BaseRepresentation
bin1011000010001001001110…
…1100011000110010110111
31120221202102200200000101120
42300202103230120302313
53042230220133434201
641445041320355023
72361320011412463
oct260422354306267
946852380600346
1012131465530551
113957a20030804
12143b1ab315a73
1369ccb90a8253
142dd2479774a3
15160879770536
hexb0893b18cb7

12131465530551 has 8 divisors (see below), whose sum is σ = 16196654995824. Its totient is φ = 8076959876160.

The previous prime is 12131465530439. The next prime is 12131465530553. The reversal of 12131465530551 is 15503556413121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12131465530551 - 210 = 12131465529527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131465530553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2670950070 + ... + 2670954611.

It is an arithmetic number, because the mean of its divisors is an integer number (2024581874478).

Almost surely, 212131465530551 is an apocalyptic number.

12131465530551 is a deficient number, since it is larger than the sum of its proper divisors (4065189465273).

12131465530551 is an equidigital number, since it uses as much as digits as its factorization.

12131465530551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5341905441.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 12131465530551 in words is "twelve trillion, one hundred thirty-one billion, four hundred sixty-five million, five hundred thirty thousand, five hundred fifty-one".

Divisors: 1 3 757 2271 5341904681 16025714043 4043821843517 12131465530551