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131310232112 = 2419431941553
BaseRepresentation
bin111101001001010110…
…0110010001000110000
3110112221020100221012002
41322102230302020300
54122410404411422
6140153441553132
712325663362023
oct1722254621060
9415836327162
10131310232112
1150763225994
12215476457a8
13c4c8482bc7
1464d94d11ba
153637dc5692
hex1e92b32230

131310232112 has 20 divisors (see below), whose sum is σ = 267803763480. Its totient is φ = 62199583488.

The previous prime is 131310232111. The next prime is 131310232199. The reversal of 131310232112 is 211232013131.

It is a happy number.

131310232112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131310232111) 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, 215970473 + ... + 215971080.

It is an arithmetic number, because the mean of its divisors is an integer number (13390188174).

Almost surely, 2131310232112 is an apocalyptic number.

It is an amenable number.

131310232112 is an abundant number, since it is smaller than the sum of its proper divisors (136493531368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131310232112 is a wasteful number, since it uses less digits than its factorization.

131310232112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431941580 (or 431941574 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131310232112 its reverse (211232013131), we get a palindrome (342542245243).

The spelling of 131310232112 in words is "one hundred thirty-one billion, three hundred ten million, two hundred thirty-two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 19 38 76 152 304 431941553 863883106 1727766212 3455532424 6911064848 8206889507 16413779014 32827558028 65655116056 131310232112