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112111201111 = 7131231991221
BaseRepresentation
bin110100001101001011…
…0010010101101010111
3101201101020000002211211
41220122112102231113
53314100431413421
6123300404042251
711046135325510
oct1503226225527
9351336002754
10112111201111
1143600939818
1219889993387
13a758a0a230
1455d7747a07
152db26239e1
hex1a1a592b57

112111201111 has 8 divisors (see below), whose sum is σ = 137983016864. Its totient is φ = 88703367840.

The previous prime is 112111201109. The next prime is 112111201133. The reversal of 112111201111 is 111102111211.

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 112111201111 - 21 = 112111201109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 112111201091 and 112111201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111201141) 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, 615995520 + ... + 615995701.

It is an arithmetic number, because the mean of its divisors is an integer number (17247877108).

Almost surely, 2112111201111 is an apocalyptic number.

112111201111 is a deficient number, since it is larger than the sum of its proper divisors (25871815753).

112111201111 is a wasteful number, since it uses less digits than its factorization.

112111201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231991241.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 112111201111 its reverse (111102111211), we get a palindrome (223213312322).

The spelling of 112111201111 in words is "one hundred twelve billion, one hundred eleven million, two hundred one thousand, one hundred eleven".

Divisors: 1 7 13 91 1231991221 8623938547 16015885873 112111201111