10203110011 has 4 divisors (see below), whose sum is σ = 10532242624. Its totient is φ = 9873977400.

The previous prime is 10203110003. The next prime is 10203110077. The reversal of 10203110011 is 11001130201.

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

It is not a de Polignac number, because 10203110011 - 2³ = 10203110003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10203110011.

It is not an unprimeable number, because it can be changed into a prime (10203110081) 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, 164566260 + ... + 164566321.

It is an arithmetic number, because the mean of its divisors is an integer number (2633060656).

Almost surely, 2^10203110011 is an apocalyptic number.

10203110011 is a deficient number, since it is larger than the sum of its proper divisors (329132613).

10203110011 is an equidigital number, since it uses as much as digits as its factorization.

10203110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329132612.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 10203110011 its reverse (11001130201), we get a palindrome (21204240212).

The spelling of 10203110011 in words is "ten billion, two hundred three million, one hundred ten thousand, eleven".