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2131100203102 = 2133179103324941
BaseRepresentation
bin11111000000101111011…
…110000111100001011110
321112201202001000012111221
4133000233132013201132
5234403443122444402
64311003001203554
7306652435562443
oct37005736074136
97481661005457
102131100203102
11751881563882
122a50311905ba
13125c6735b150
147520810b9ca
153a67c717337
hex1f02f78785e

2131100203102 has 64 divisors (see below), whose sum is σ = 3633527439360. Its totient is φ = 930680150400.

The previous prime is 2131100203097. The next prime is 2131100203103. The reversal of 2131100203102 is 2013020011312.

It is a super-2 number, since 2×21311002031022 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131100203103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6395952 + ... + 6720892.

It is an arithmetic number, because the mean of its divisors is an integer number (56773866240).

Almost surely, 22131100203102 is an apocalyptic number.

2131100203102 is a deficient number, since it is larger than the sum of its proper divisors (1502427236258).

2131100203102 is a wasteful number, since it uses less digits than its factorization.

2131100203102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325169.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2131100203102 its reverse (2013020011312), we get a palindrome (4144120214414).

The spelling of 2131100203102 in words is "two trillion, one hundred thirty-one billion, one hundred million, two hundred three thousand, one hundred two".

Divisors: 1 2 13 26 31 62 79 103 158 206 403 806 1027 1339 2054 2449 2678 3193 4898 6386 8137 16274 31837 41509 63674 83018 105781 211562 252247 324941 504494 649882 3279211 4224233 6558422 8448466 10073171 20146342 25670339 33468923 51340678 66937846 130951223 261902446 333714407 435095999 667428814 795780509 870191998 1037536613 1591561018 2075073226 2644044917 5288089834 10345146617 13487975969 20690293234 26975951938 34372583921 68745167842 81965392427 163930784854 1065550101551 2131100203102