11030203111 has 4 divisors (see below), whose sum is σ = 11117055232. Its totient is φ = 10943350992.

The previous prime is 11030203103. The next prime is 11030203123. The reversal of 11030203111 is 11130203011.

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 11030203111 - 2³ = 11030203103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11030203091 and 11030203100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030204111) 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, 43425870 + ... + 43426123.

It is an arithmetic number, because the mean of its divisors is an integer number (2779263808).

Almost surely, 2^11030203111 is an apocalyptic number.

11030203111 is a deficient number, since it is larger than the sum of its proper divisors (86852121).

11030203111 is an equidigital number, since it uses as much as digits as its factorization.

11030203111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86852120.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11030203111 its reverse (11130203011), we get a palindrome (22160406122).

The spelling of 11030203111 in words is "eleven billion, thirty million, two hundred three thousand, one hundred eleven".