11103002131 has 4 divisors (see below), whose sum is σ = 11957079232. Its totient is φ = 10248925032.

The previous prime is 11103002101. The next prime is 11103002153. The reversal of 11103002131 is 13120030111.

11103002131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13120030111 = 709 ⋅18504979.

It is a cyclic number.

It is not a de Polignac number, because 11103002131 - 2⁷ = 11103002003 is a prime.

It is a super-2 number, since 2×11103002131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 854077087 = 11103002131 / (1 + 1 + 1 + 0 + 3 + 0 + 0 + 2 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11103002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427038531 + ... + 427038556.

It is an arithmetic number, because the mean of its divisors is an integer number (2989269808).

Almost surely, 2^11103002131 is an apocalyptic number.

11103002131 is a deficient number, since it is larger than the sum of its proper divisors (854077101).

11103002131 is an equidigital number, since it uses as much as digits as its factorization.

11103002131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854077100.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11103002131 its reverse (13120030111), we get a palindrome (24223032242).

The spelling of 11103002131 in words is "eleven billion, one hundred three million, two thousand, one hundred thirty-one".