11103423131 has 2 divisors, whose sum is σ = 11103423132. Its totient is φ = 11103423130.

The previous prime is 11103423083. The next prime is 11103423173. The reversal of 11103423131 is 13132430111.

11103423131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11103423131 - 2¹⁰ = 11103422107 is a prime.

It is a super-2 number, since 2×11103423131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11103423181) 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 as a sum of consecutive naturals, namely, 5551711565 + 5551711566.

It is an arithmetic number, because the mean of its divisors is an integer number (5551711566).

Almost surely, 2^11103423131 is an apocalyptic number.

11103423131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103423131 is an equidigital number, since it uses as much as digits as its factorization.

11103423131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11103423131 its reverse (13132430111), we get a palindrome (24235853242).

The spelling of 11103423131 in words is "eleven billion, one hundred three million, four hundred twenty-three thousand, one hundred thirty-one".