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11120231 = 43125801
BaseRepresentation
bin101010011010…
…111001100111
3202220222002102
4222122321213
510321321411
61034202315
7163343333
oct52327147
922828072
1011120231
116305881
12388339b
1323c4725
1416967c3
15e99d3b
hexa9ae67

11120231 has 4 divisors (see below), whose sum is σ = 11146464. Its totient is φ = 11094000.

The previous prime is 11120209. The next prime is 11120243. The reversal of 11120231 is 13202111.

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 11120231 - 26 = 11120167 is a prime.

It is a super-2 number, since 2×111202312 = 247319074986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120251) 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, 12470 + ... + 13331.

It is an arithmetic number, because the mean of its divisors is an integer number (2786616).

Almost surely, 211120231 is an apocalyptic number.

11120231 is a deficient number, since it is larger than the sum of its proper divisors (26233).

11120231 is an equidigital number, since it uses as much as digits as its factorization.

11120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26232.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11120231 is about 3334.7010360750. The cubic root of 11120231 is about 223.2053515394.

Adding to 11120231 its reverse (13202111), we get a palindrome (24322342).

The spelling of 11120231 in words is "eleven million, one hundred twenty thousand, two hundred thirty-one".

Divisors: 1 431 25801 11120231