1001128103 has 2 divisors, whose sum is σ = 1001128104. Its totient is φ = 1001128102.

The previous prime is 1001128091. The next prime is 1001128109. The reversal of 1001128103 is 3018211001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001128103 - 2⁶ = 1001128039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001128109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500564051 + 500564052.

It is an arithmetic number, because the mean of its divisors is an integer number (500564052).

Almost surely, 2^1001128103 is an apocalyptic number.

1001128103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001128103 is an equidigital number, since it uses as much as digits as its factorization.

1001128103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1001128103 is about 31640.6084486376. The cubic root of 1001128103 is about 1000.3758930201.

Adding to 1001128103 its reverse (3018211001), we get a palindrome (4019339104).

The spelling of 1001128103 in words is "one billion, one million, one hundred twenty-eight thousand, one hundred three".