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131002012212 = 22319574570229
BaseRepresentation
bin111101000000001010…
…1000001001000110100
3110112010202101201222020
41322000111001020310
54121243003342322
6140103111433140
712315231505521
oct1720025011064
9415122351866
10131002012212
11506152477a5
12214803857b0
13c479667876
1464aa5bc148
15361ace105c
hex1e80541234

131002012212 has 24 divisors (see below), whose sum is σ = 321759328800. Its totient is φ = 41369056416.

The previous prime is 131002012199. The next prime is 131002012313. The reversal of 131002012212 is 212210200131.

131002012212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 131002012191 and 131002012200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287284887 + ... + 287285342.

It is an arithmetic number, because the mean of its divisors is an integer number (13406638700).

Almost surely, 2131002012212 is an apocalyptic number.

131002012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131002012212 is an abundant number, since it is smaller than the sum of its proper divisors (190757316588).

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

131002012212 is a wasteful number, since it uses less digits than its factorization.

131002012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574570255 (or 574570253 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 131002012212 its reverse (212210200131), we get a palindrome (343212212343).

The spelling of 131002012212 in words is "one hundred thirty-one billion, two million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 574570229 1149140458 1723710687 2298280916 3447421374 6894842748 10916834351 21833668702 32750503053 43667337404 65501006106 131002012212