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131130130331 = 472790002773
BaseRepresentation
bin111101000011111110…
…1101111111110011011
3110112110200110210222202
41322013331233332123
54122023303132311
6140123525440415
712321345500654
oct1720775577633
9415420423882
10131130130331
11506805a3842
12214b727010b
13c49a0748c5
1464bd60c52b
15362719be3b
hex1e87f6ff9b

131130130331 has 4 divisors (see below), whose sum is σ = 133920133152. Its totient is φ = 128340127512.

The previous prime is 131130130273. The next prime is 131130130367. The reversal of 131130130331 is 133031031131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131130130331 - 26 = 131130130267 is a prime.

It is a super-2 number, since 2×1311301303312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131130130381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395001340 + ... + 1395001433.

It is an arithmetic number, because the mean of its divisors is an integer number (33480033288).

Almost surely, 2131130130331 is an apocalyptic number.

131130130331 is a deficient number, since it is larger than the sum of its proper divisors (2790002821).

131130130331 is an equidigital number, since it uses as much as digits as its factorization.

131130130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790002820.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 131130130331 its reverse (133031031131), we get a palindrome (264161161462).

The spelling of 131130130331 in words is "one hundred thirty-one billion, one hundred thirty million, one hundred thirty thousand, three hundred thirty-one".

Divisors: 1 47 2790002773 131130130331