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2122313311 = 17312267707
BaseRepresentation
bin111111001111111…
…1110111001011111
312110220111200112201
41332133332321133
513321303011221
6550332312331
7103410236236
oct17637767137
95426450481
102122313311
11999a99448
124b29126a7
1327a9011c1
14161c17b1d
15c64c3891
hex7e7fee5f

2122313311 has 4 divisors (see below), whose sum is σ = 2134581192. Its totient is φ = 2110045432.

The previous prime is 2122313287. The next prime is 2122313317. The reversal of 2122313311 is 1133132212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122313311 - 25 = 2122313279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122313317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6133681 + ... + 6134026.

It is an arithmetic number, because the mean of its divisors is an integer number (533645298).

Almost surely, 22122313311 is an apocalyptic number.

2122313311 is a deficient number, since it is larger than the sum of its proper divisors (12267881).

2122313311 is a wasteful number, since it uses less digits than its factorization.

2122313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12267880.

The product of its digits is 216, while the sum is 19.

The square root of 2122313311 is about 46068.5718359057. The cubic root of 2122313311 is about 1285.0987445504.

Adding to 2122313311 its reverse (1133132212), we get a palindrome (3255445523).

The spelling of 2122313311 in words is "two billion, one hundred twenty-two million, three hundred thirteen thousand, three hundred eleven".

Divisors: 1 173 12267707 2122313311