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1031344123 = 3449299027
BaseRepresentation
bin111101011110010…
…000111111111011
32122212122201011111
4331132100333323
54103011002443
6250201141151
734362165115
oct7536207773
92585581144
101031344123
1148a192117
1224948a7b7
13135892bc4
149ad8a3b5
156082369d
hex3d790ffb

1031344123 has 4 divisors (see below), whose sum is σ = 1031646600. Its totient is φ = 1031041648.

The previous prime is 1031344103. The next prime is 1031344133. The reversal of 1031344123 is 3214431301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3214431301 = 11712745031.

It is a cyclic number.

It is not a de Polignac number, because 1031344123 - 221 = 1029246971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031344094 and 1031344103.

It is not an unprimeable number, because it can be changed into a prime (1031344103) 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, 146065 + ... + 152962.

It is an arithmetic number, because the mean of its divisors is an integer number (257911650).

Almost surely, 21031344123 is an apocalyptic number.

1031344123 is a deficient number, since it is larger than the sum of its proper divisors (302477).

1031344123 is an equidigital number, since it uses as much as digits as its factorization.

1031344123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302476.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1031344123 is about 32114.5469063476. The cubic root of 1031344123 is about 1010.3407414838.

Adding to 1031344123 its reverse (3214431301), we get a palindrome (4245775424).

The spelling of 1031344123 in words is "one billion, thirty-one million, three hundred forty-four thousand, one hundred twenty-three".

Divisors: 1 3449 299027 1031344123