1103123501 has 2 divisors, whose sum is σ = 1103123502. Its totient is φ = 1103123500.

The previous prime is 1103123473. The next prime is 1103123551. The reversal of 1103123501 is 1053213011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 765850276 + 337273225 = 27674^2 + 18365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103123501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103123501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103123551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551561750 + 551561751.

It is an arithmetic number, because the mean of its divisors is an integer number (551561751).

Almost surely, 2^1103123501 is an apocalyptic number.

It is an amenable number.

1103123501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103123501 is an equidigital number, since it uses as much as digits as its factorization.

1103123501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1103123501 is about 33213.3030727147. The cubic root of 1103123501 is about 1033.2562611842.

Adding to 1103123501 its reverse (1053213011), we get a palindrome (2156336512).

The spelling of 1103123501 in words is "one billion, one hundred three million, one hundred twenty-three thousand, five hundred one".