1003123117 has 2 divisors, whose sum is σ = 1003123118. Its totient is φ = 1003123116.

The previous prime is 1003123067. The next prime is 1003123123. The reversal of 1003123117 is 7113213001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 895565476 + 107557641 = 29926^2 + 10371^2 .

It is an emirp because it is prime and its reverse (7113213001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1003123117 - 2¹⁹ = 1002598829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1003123094 and 1003123103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003123157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501561558 + 501561559.

It is an arithmetic number, because the mean of its divisors is an integer number (501561559).

Almost surely, 2^1003123117 is an apocalyptic number.

It is an amenable number.

1003123117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003123117 is an equidigital number, since it uses as much as digits as its factorization.

1003123117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1003123117 is about 31672.1189218530. The cubic root of 1003123117 is about 1001.0399571143.

Adding to 1003123117 its reverse (7113213001), we get a palindrome (8116336118).

The spelling of 1003123117 in words is "one billion, three million, one hundred twenty-three thousand, one hundred seventeen".