11103124123 has 16 divisors (see below), whose sum is σ = 13668984000. Its totient is φ = 8782574976.

The previous prime is 11103124117. The next prime is 11103124129. The reversal of 11103124123 is 32142130111.

It is an interprime number because it is at equal distance from previous prime (11103124117) and next prime (11103124129).

It is not a de Polignac number, because 11103124123 - 2¹³ = 11103115931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11103124123.

It is not an unprimeable number, because it can be changed into a prime (11103124129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386253 + ... + 414001.

It is an arithmetic number, because the mean of its divisors is an integer number (854311500).

Almost surely, 2^11103124123 is an apocalyptic number.

11103124123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11103124123 is a deficient number, since it is larger than the sum of its proper divisors (2565859877).

11103124123 is a wasteful number, since it uses less digits than its factorization.

11103124123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32166.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11103124123 its reverse (32142130111), we get a palindrome (43245254234).

The spelling of 11103124123 in words is "eleven billion, one hundred three million, one hundred twenty-four thousand, one hundred twenty-three".