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2112331011 = 37434771701
BaseRepresentation
bin111110111100111…
…1001110100000011
312110012201112101220
41331321321310003
513311224043021
6545334330123
7103226342310
oct17571716403
95405645356
102112331011
119943a060a
124ab4b9943
1327881770b
14160779d07
15c56a0cc6
hex7de79d03

2112331011 has 64 divisors (see below), whose sum is σ = 3415965696. Its totient is φ = 1136016000.

The previous prime is 2112331009. The next prime is 2112331027. The reversal of 2112331011 is 1101332112.

It is a happy number.

It is not a de Polignac number, because 2112331011 - 21 = 2112331009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2112331031) 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 63 ways as a sum of consecutive naturals, for example, 3012961 + ... + 3013661.

It is an arithmetic number, because the mean of its divisors is an integer number (53374464).

Almost surely, 22112331011 is an apocalyptic number.

2112331011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2112331011 is a deficient number, since it is larger than the sum of its proper divisors (1303634685).

2112331011 is a wasteful number, since it uses less digits than its factorization.

2112331011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2112331011 is about 45960.1023823925. The cubic root of 2112331011 is about 1283.0807568521.

Adding to 2112331011 its reverse (1101332112), we get a palindrome (3213663123).

The spelling of 2112331011 in words is "two billion, one hundred twelve million, three hundred thirty-one thousand, eleven".

Divisors: 1 3 7 21 43 47 71 129 141 213 301 329 497 701 903 987 1491 2021 2103 3053 3337 4907 6063 9159 10011 14147 14721 21371 23359 30143 32947 42441 49771 64113 70077 90429 98841 143491 149313 211001 230629 348397 430473 633003 691887 1004437 1045191 1416721 2140153 2339237 3013311 4250163 6420459 7017711 9917047 14981071 16374659 29751141 44943213 49123977 100587191 301761573 704110337 2112331011