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131311012113 = 334863370819
BaseRepresentation
bin111101001001010111…
…1110000100100010001
3110112221021211120011000
41322102233300210101
54122411104341423
6140153510412213
712326003121051
oct1722257604421
9415837746130
10131311012113
1150763708a16
1221547961069
13c4c8696c48
1464d9655561
153637ecb843
hex1e92bf0911

131311012113 has 8 divisors (see below), whose sum is σ = 194534832800. Its totient is φ = 87540674724.

The previous prime is 131311012031. The next prime is 131311012127. The reversal of 131311012113 is 311210113131.

It is not a de Polignac number, because 131311012113 - 213 = 131311003921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131311012153) 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, 2431685383 + ... + 2431685436.

It is an arithmetic number, because the mean of its divisors is an integer number (24316854100).

Almost surely, 2131311012113 is an apocalyptic number.

It is an amenable number.

131311012113 is a deficient number, since it is larger than the sum of its proper divisors (63223820687).

131311012113 is an equidigital number, since it uses as much as digits as its factorization.

131311012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863370828 (or 4863370822 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 131311012113 its reverse (311210113131), we get a palindrome (442521125244).

The spelling of 131311012113 in words is "one hundred thirty-one billion, three hundred eleven million, twelve thousand, one hundred thirteen".

Divisors: 1 3 9 27 4863370819 14590112457 43770337371 131311012113