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2131043020411 = 191575519129443
BaseRepresentation
bin11111000000101100000…
…011111110111001111011
321112201121001102000121111
4133000230003332321323
5234403334003123121
64310553155421151
7306651142541164
oct37005403767173
97481531360544
102131043020411
11751852257658
122a5015bb47b7
13125c58559636
14752006a476b
153a6776be2e1
hex1f02c0fee7b

2131043020411 has 16 divisors (see below), whose sum is σ = 2257917580800. Its totient is φ = 2005644764448.

The previous prime is 2131043020361. The next prime is 2131043020493. The reversal of 2131043020411 is 1140203401312.

It is a cyclic number.

It is not a de Polignac number, because 2131043020411 - 29 = 2131043019899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131043021411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16398456 + ... + 16527898.

It is an arithmetic number, because the mean of its divisors is an integer number (141119848800).

Almost surely, 22131043020411 is an apocalyptic number.

2131043020411 is a deficient number, since it is larger than the sum of its proper divisors (126874560389).

2131043020411 is a wasteful number, since it uses less digits than its factorization.

2131043020411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135138.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2131043020411 its reverse (1140203401312), we get a palindrome (3271246421723).

The spelling of 2131043020411 in words is "two trillion, one hundred thirty-one billion, forty-three million, twenty thousand, four hundred eleven".

Divisors: 1 19 157 2983 5519 104861 129443 866483 2459417 16463177 20322551 386128469 714395917 13573522423 112160158969 2131043020411