11203131032103 has 16 divisors (see below), whose sum is σ = 14957300768256. Its totient is φ = 7458862714080.

The previous prime is 11203131032099. The next prime is 11203131032123. The reversal of 11203131032103 is 30123013130211.

It is a happy number.

It is not a de Polignac number, because 11203131032103 - 2² = 11203131032099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11203131032103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203131032123) 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, 8261926 + ... + 9521852.

It is an arithmetic number, because the mean of its divisors is an integer number (934831298016).

Almost surely, 2^{11203131032103} is an apocalyptic number.

11203131032103 is a deficient number, since it is larger than the sum of its proper divisors (3754169736153).

11203131032103 is a wasteful number, since it uses less digits than its factorization.

11203131032103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263854.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11203131032103 its reverse (30123013130211), we get a palindrome (41326144162314).

The spelling of 11203131032103 in words is "eleven trillion, two hundred three billion, one hundred thirty-one million, thirty-two thousand, one hundred three".