11203142011 has 4 divisors (see below), whose sum is σ = 11203433352. Its totient is φ = 11202850672.

The previous prime is 11203142009. The next prime is 11203142023. The reversal of 11203142011 is 11024130211.

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 11203142011 - 2¹ = 11203142009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203142081) 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, 77290 + ... + 168463.

It is an arithmetic number, because the mean of its divisors is an integer number (2800858338).

Almost surely, 2^11203142011 is an apocalyptic number.

11203142011 is a deficient number, since it is larger than the sum of its proper divisors (291341).

11203142011 is an equidigital number, since it uses as much as digits as its factorization.

11203142011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291340.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11203142011 its reverse (11024130211), we get a palindrome (22227272222).

The spelling of 11203142011 in words is "eleven billion, two hundred three million, one hundred forty-two thousand, eleven".