11020111020203 has 4 divisors (see below), whose sum is σ = 11020212267288. Its totient is φ = 11020009773120.

The previous prime is 11020111020187. The next prime is 11020111020283. The reversal of 11020111020203 is 30202011102011.

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 11020111020203 - 2⁴ = 11020111020187 is a prime.

It is a super-2 number, since 2×11020111020203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020111020283) 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 3 ways as a sum of consecutive naturals, for example, 50460101 + ... + 50678022.

It is an arithmetic number, because the mean of its divisors is an integer number (2755053066822).

Almost surely, 2^{11020111020203} is an apocalyptic number.

11020111020203 is a deficient number, since it is larger than the sum of its proper divisors (101247085).

11020111020203 is a wasteful number, since it uses less digits than its factorization.

11020111020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101247084.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11020111020203 its reverse (30202011102011), we get a palindrome (41222122122214).

The spelling of 11020111020203 in words is "eleven trillion, twenty billion, one hundred eleven million, twenty thousand, two hundred three".