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2113013111 = 111723111487
BaseRepresentation
bin111110111110010…
…0000010101110111
312110021000012001212
41331330200111313
513311412404421
6545401112035
7103235213036
oct17574402567
95407005055
102113013111
11994817030
124ab78861b
132789c6021
141608b671d
15c5787e5b
hex7df20577

2113013111 has 8 divisors (see below), whose sum is σ = 2306463744. Its totient is φ = 1919788920.

The previous prime is 2113013083. The next prime is 2113013159. The reversal of 2113013111 is 1113103112.

It is a happy number.

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 2113013111 - 210 = 2113012087 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 (2113013191) 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 7 ways as a sum of consecutive naturals, for example, 36791 + ... + 74696.

It is an arithmetic number, because the mean of its divisors is an integer number (288307968).

Almost surely, 22113013111 is an apocalyptic number.

2113013111 is a deficient number, since it is larger than the sum of its proper divisors (193450633).

2113013111 is a wasteful number, since it uses less digits than its factorization.

2113013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113221.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 2113013111 is about 45967.5223500245. The cubic root of 2113013111 is about 1283.2188499813.

Adding to 2113013111 its reverse (1113103112), we get a palindrome (3226116223).

Subtracting from 2113013111 its reverse (1113103112), we obtain a palindrome (999909999).

It can be divided in two parts, 211301 and 3111, that added together give a palindrome (214412).

The spelling of 2113013111 in words is "two billion, one hundred thirteen million, thirteen thousand, one hundred eleven".

Divisors: 1 11 1723 18953 111487 1226357 192092101 2113013111