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11123141 = 31358811
BaseRepresentation
bin101010011011…
…100111000101
3202221010002012
4222123213011
510321420031
61034224005
7163354661
oct52334705
922833065
1011123141
116307a87
123885005
1323c5b53
1416978a1
15e9ab2b
hexa9b9c5

11123141 has 4 divisors (see below), whose sum is σ = 11481984. Its totient is φ = 10764300.

The previous prime is 11123137. The next prime is 11123143. The reversal of 11123141 is 14132111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14132111 = 72018873.

It is a cyclic number.

It is not a de Polignac number, because 11123141 - 22 = 11123137 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 (11123143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179375 + ... + 179436.

It is an arithmetic number, because the mean of its divisors is an integer number (2870496).

Almost surely, 211123141 is an apocalyptic number.

It is an amenable number.

11123141 is a deficient number, since it is larger than the sum of its proper divisors (358843).

11123141 is an equidigital number, since it uses as much as digits as its factorization.

11123141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358842.

The product of its digits is 24, while the sum is 14.

The square root of 11123141 is about 3335.1373285069. The cubic root of 11123141 is about 223.2248196879.

Adding to 11123141 its reverse (14132111), we get a palindrome (25255252).

The spelling of 11123141 in words is "eleven million, one hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 31 358811 11123141