1100131203 has 4 divisors (see below), whose sum is σ = 1466841608. Its totient is φ = 733420800.

The previous prime is 1100131189. The next prime is 1100131231. The reversal of 1100131203 is 3021310011.

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

It is not a de Polignac number, because 1100131203 - 2⁵ = 1100131171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100131283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183355198 + ... + 183355203.

It is an arithmetic number, because the mean of its divisors is an integer number (366710402).

Almost surely, 2^1100131203 is an apocalyptic number.

1100131203 is a deficient number, since it is larger than the sum of its proper divisors (366710405).

1100131203 is an equidigital number, since it uses as much as digits as its factorization.

1100131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366710404.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1100131203 is about 33168.2258042241. The cubic root of 1100131203 is about 1032.3211557180.

Adding to 1100131203 its reverse (3021310011), we get a palindrome (4121441214).

The spelling of 1100131203 in words is "one billion, one hundred million, one hundred thirty-one thousand, two hundred three".