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2111132111 = 11296617969
BaseRepresentation
bin111110111010101…
…0101000111001111
312110010110121211012
41331311111013033
513310422211421
6545252515435
7103213220054
oct17565250717
95403417735
102111132111
11993751890
124ab01bb7b
132784b7aca
1416054702b
15c551595b
hex7dd551cf

2111132111 has 8 divisors (see below), whose sum is σ = 2382469200. Its totient is φ = 1853031040.

The previous prime is 2111132087. The next prime is 2111132129. The reversal of 2111132111 is 1112311112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111132111 - 230 = 1037390287 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 (2111132311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3308666 + ... + 3309303.

It is an arithmetic number, because the mean of its divisors is an integer number (297808650).

Almost surely, 22111132111 is an apocalyptic number.

2111132111 is a deficient number, since it is larger than the sum of its proper divisors (271337089).

2111132111 is a wasteful number, since it uses less digits than its factorization.

2111132111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618009.

The product of its digits is 12, while the sum is 14.

The square root of 2111132111 is about 45947.0576968754. The cubic root of 2111132111 is about 1282.8379639955.

Adding to 2111132111 its reverse (1112311112), we get a palindrome (3223443223).

The spelling of 2111132111 in words is "two billion, one hundred eleven million, one hundred thirty-two thousand, one hundred eleven".

Divisors: 1 11 29 319 6617969 72797659 191921101 2111132111