11130003123 has 4 divisors (see below), whose sum is σ = 14840004168. Its totient is φ = 7420002080.

The previous prime is 11130003077. The next prime is 11130003167. The reversal of 11130003123 is 32130003111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11130003123 - 2²² = 11125808819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11130003223) 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, 1855000518 + ... + 1855000523.

It is an arithmetic number, because the mean of its divisors is an integer number (3710001042).

Almost surely, 2^11130003123 is an apocalyptic number.

11130003123 is a deficient number, since it is larger than the sum of its proper divisors (3710001045).

11130003123 is an equidigital number, since it uses as much as digits as its factorization.

11130003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710001044.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 11130003123 its reverse (32130003111), we get a palindrome (43260006234).

The spelling of 11130003123 in words is "eleven billion, one hundred thirty million, three thousand, one hundred twenty-three".