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131231110003 = 7173171501037
BaseRepresentation
bin111101000110111111…
…0111101001101110011
3110112201201111010001121
41322031332331031303
54122230131010003
6140141534043111
712324013013230
oct1721576751563
9415651433047
10131231110003
11507225a4314
1221525049497
13c4b4c6c2a6
1464ccbb6787
153630e96cbd
hex1e8dfbd373

131231110003 has 32 divisors (see below), whose sum is σ = 166232383488. Its totient is φ = 101008857600.

The previous prime is 131231109983. The next prime is 131231110061. The reversal of 131231110003 is 300011132131.

It is not a de Polignac number, because 131231110003 - 213 = 131231101811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131231119003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11401 + ... + 512437.

It is an arithmetic number, because the mean of its divisors is an integer number (5194761984).

Almost surely, 2131231110003 is an apocalyptic number.

131231110003 is a deficient number, since it is larger than the sum of its proper divisors (35001273485).

131231110003 is a wasteful number, since it uses less digits than its factorization.

131231110003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501163.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 131231110003 its reverse (300011132131), we get a palindrome (431242242134).

The spelling of 131231110003 in words is "one hundred thirty-one billion, two hundred thirty-one million, one hundred ten thousand, three".

Divisors: 1 7 17 31 71 119 217 497 527 1207 2201 3689 8449 15407 37417 261919 501037 3507259 8517629 15532147 35573627 59623403 108725029 249015389 264046499 604751659 1102782437 1848325493 4233261613 7719477059 18747301429 131231110003