11203203001 has 4 divisors (see below), whose sum is σ = 11213454052. Its totient is φ = 11192951952.

The previous prime is 11203202981. The next prime is 11203203013. The reversal of 11203203001 is 10030230211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10030230211 = 37 ⋅271087303.

It can be written as a sum of positive squares in 2 ways, for example, as 7374687376 + 3828515625 = 85876^2 + 61875^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203203001 - 2⁷ = 11203202873 is a prime.

It is a super-4 number, since 4×11203203001⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203203901) 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, 5123886 + ... + 5126071.

It is an arithmetic number, because the mean of its divisors is an integer number (2803363513).

Almost surely, 2^11203203001 is an apocalyptic number.

It is an amenable number.

11203203001 is a deficient number, since it is larger than the sum of its proper divisors (10251051).

11203203001 is a wasteful number, since it uses less digits than its factorization.

11203203001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251050.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 11203203001 its reverse (10030230211), we get a palindrome (21233433212).

The spelling of 11203203001 in words is "eleven billion, two hundred three million, two hundred three thousand, one".