11031100133203 has 4 divisors (see below), whose sum is σ = 11611684350760. Its totient is φ = 10450515915648.

The previous prime is 11031100133173. The next prime is 11031100133231. The reversal of 11031100133203 is 30233100113011.

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 11031100133203 - 2⁵ = 11031100133171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 580584217537 = 11031100133203 / (1 + 1 + 0 + 3 + 1 + 1 + 0 + 0 + 1 + 3 + 3 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031100133903) 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, 290292108750 + ... + 290292108787.

It is an arithmetic number, because the mean of its divisors is an integer number (2902921087690).

Almost surely, 2^{11031100133203} is an apocalyptic number.

11031100133203 is a deficient number, since it is larger than the sum of its proper divisors (580584217557).

11031100133203 is an equidigital number, since it uses as much as digits as its factorization.

11031100133203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580584217556.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11031100133203 its reverse (30233100113011), we get a palindrome (41264200246214).

The spelling of 11031100133203 in words is "eleven trillion, thirty-one billion, one hundred million, one hundred thirty-three thousand, two hundred three".