11203103101031 has 4 divisors (see below), whose sum is σ = 11232662740200. Its totient is φ = 11173543461864.

The previous prime is 11203103101027. The next prime is 11203103101051. The reversal of 11203103101031 is 13010130130211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11203103101031 - 2² = 11203103101027 is a prime.

It is a super-2 number, since 2×11203103101031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203103101051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14779819016 + ... + 14779819773.

It is an arithmetic number, because the mean of its divisors is an integer number (2808165685050).

Almost surely, 2^{11203103101031} is an apocalyptic number.

11203103101031 is a deficient number, since it is larger than the sum of its proper divisors (29559639169).

11203103101031 is an equidigital number, since it uses as much as digits as its factorization.

11203103101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29559639168.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11203103101031 its reverse (13010130130211), we get a palindrome (24213233231242).

The spelling of 11203103101031 in words is "eleven trillion, two hundred three billion, one hundred three million, one hundred one thousand, thirty-one".