11030203123 has 2 divisors, whose sum is σ = 11030203124. Its totient is φ = 11030203122.

The previous prime is 11030203103. The next prime is 11030203187. The reversal of 11030203123 is 32130203011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11030203123 - 2⁵ = 11030203091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11030203097 and 11030203106.

It is not a weakly prime, because it can be changed into another prime (11030203103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515101561 + 5515101562.

It is an arithmetic number, because the mean of its divisors is an integer number (5515101562).

Almost surely, 2^11030203123 is an apocalyptic number.

11030203123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11030203123 is an equidigital number, since it uses as much as digits as its factorization.

11030203123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 11030203123 its reverse (32130203011), we get a palindrome (43160406134).

The spelling of 11030203123 in words is "eleven billion, thirty million, two hundred three thousand, one hundred twenty-three".