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2131203310212 = 223177600275851
BaseRepresentation
bin11111000000110101100…
…111011100001010000100
321112202000020000120212210
4133000311213130022010
5234404201021411322
64311021123143420
7306655130145324
oct37006547341204
97482006016783
102131203310212
11751924787769
122a505b814b70
13125c8281bc82
1475217aab284
153a6867d270c
hex1f0359dc284

2131203310212 has 12 divisors (see below), whose sum is σ = 4972807723856. Its totient is φ = 710401103400.

The previous prime is 2131203310211. The next prime is 2131203310241. The reversal of 2131203310212 is 2120133021312.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2131203310211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88800137914 + ... + 88800137937.

Almost surely, 22131203310212 is an apocalyptic number.

It is an amenable number.

2131203310212 is an abundant number, since it is smaller than the sum of its proper divisors (2841604413644).

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

2131203310212 is a wasteful number, since it uses less digits than its factorization.

2131203310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177600275858 (or 177600275856 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2131203310212 its reverse (2120133021312), we get a palindrome (4251336331524).

The spelling of 2131203310212 in words is "two trillion, one hundred thirty-one billion, two hundred three million, three hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 177600275851 355200551702 532800827553 710401103404 1065601655106 2131203310212