11103124031 has 16 divisors (see below), whose sum is σ = 12396952800. Its totient is φ = 9882436608.

The previous prime is 11103124009. The next prime is 11103124033. The reversal of 11103124031 is 13042130111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11103124031 is a prime.

It is a super-2 number, since 2×11103124031² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103124033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153581 + ... + 213993.

It is an arithmetic number, because the mean of its divisors is an integer number (774809550).

Almost surely, 2^11103124031 is an apocalyptic number.

11103124031 is a deficient number, since it is larger than the sum of its proper divisors (1293828769).

11103124031 is a wasteful number, since it uses less digits than its factorization.

11103124031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61018.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11103124031 its reverse (13042130111), we get a palindrome (24145254142).

The spelling of 11103124031 in words is "eleven billion, one hundred three million, one hundred twenty-four thousand, thirty-one".