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131120312510251 = 792395576928417
BaseRepresentation
bin11101110100000011010011…
…101001100110011100101011
3122012020222110000122111020001
4131310003103221212130223
5114141233400000312001
61142511501235043431
736422062402005511
oct3564032351463453
9565228400574201
10131120312510251
11388628a3126879
1212857bb3440577
1358217916c619c
14245438525a4b1
151025b18446001
hex7740d3a6672b

131120312510251 has 8 divisors (see below), whose sum is σ = 132780636739520. Its totient is φ = 129460002617088.

The previous prime is 131120312510197. The next prime is 131120312510281. The reversal of 131120312510251 is 152015213021131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131120312510251 - 219 = 131120311985963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131120312510281) 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, 15460795 + ... + 22389211.

It is an arithmetic number, because the mean of its divisors is an integer number (16597579592440).

Almost surely, 2131120312510251 is an apocalyptic number.

131120312510251 is a deficient number, since it is larger than the sum of its proper divisors (1660324229269).

131120312510251 is an equidigital number, since it uses as much as digits as its factorization.

131120312510251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168053.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 131120312510251 its reverse (152015213021131), we get a palindrome (283135525531382).

The spelling of 131120312510251 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred twelve million, five hundred ten thousand, two hundred fifty-one".

Divisors: 1 79 239557 6928417 18925003 547344943 1659750791269 131120312510251