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11312022211 = 72238778263
BaseRepresentation
bin10101000100011111…
…11100001011000011
31002012100120021020121
422202033330023003
5141131334202321
65110251521111
7550215413410
oct124217741303
932170507217
1011312022211
114885383796
122238459197
1310b3774589
147944d3107
15463175441
hex2a23fc2c3

11312022211 has 16 divisors (see below), whose sum is σ = 13002379264. Its totient is φ = 9640365984.

The previous prime is 11312022203. The next prime is 11312022217. The reversal of 11312022211 is 11222021311.

11312022211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11312022211 - 23 = 11312022203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11312022217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364866 + ... + 1373128.

It is an arithmetic number, because the mean of its divisors is an integer number (812648704).

Almost surely, 211312022211 is an apocalyptic number.

11312022211 is a deficient number, since it is larger than the sum of its proper divisors (1690357053).

11312022211 is an equidigital number, since it uses as much as digits as its factorization.

11312022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11312022211 its reverse (11222021311), we get a palindrome (22534043522).

The spelling of 11312022211 in words is "eleven billion, three hundred twelve million, twenty-two thousand, two hundred eleven".

Divisors: 1 7 223 877 1561 6139 8263 57841 195571 1368997 1842649 7246651 12898543 50726557 1616003173 11312022211