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1131023 is a prime number
BaseRepresentation
bin100010100001000001111
32010110110202
410110020033
5242143043
640124115
712420305
oct4241017
92113422
101131023
11702833
1246663b
13307a5a
14216275
151751b8
hex11420f

1131023 has 2 divisors, whose sum is σ = 1131024. Its totient is φ = 1131022.

The previous prime is 1130981. The next prime is 1131047. The reversal of 1131023 is 3201311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1131023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1130995 and 1131013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565511 + 565512.

It is an arithmetic number, because the mean of its divisors is an integer number (565512).

21131023 is an apocalyptic number.

1131023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131023 is an equidigital number, since it uses as much as digits as its factorization.

1131023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1131023 is about 1063.4956511430. The cubic root of 1131023 is about 104.1894660139.

Adding to 1131023 its reverse (3201311), we get a palindrome (4332334).

The spelling of 1131023 in words is "one million, one hundred thirty-one thousand, twenty-three".