11203401001 has 4 divisors (see below), whose sum is σ = 12065201092. Its totient is φ = 10341600912.

The previous prime is 11203400969. The next prime is 11203401019. The reversal of 11203401001 is 10010430211.

11203401001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10010430211 = 1601 ⋅6252611.

It can be written as a sum of positive squares in 2 ways, for example, as 6150323776 + 5053077225 = 78424^2 + 71085^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203401001 - 2⁵ = 11203400969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 861800077 = 11203401001 / (1 + 1 + 2 + 0 + 3 + 4 + 0 + 1 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203401061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430900026 + ... + 430900051.

It is an arithmetic number, because the mean of its divisors is an integer number (3016300273).

Almost surely, 2^11203401001 is an apocalyptic number.

It is an amenable number.

11203401001 is a deficient number, since it is larger than the sum of its proper divisors (861800091).

11203401001 is an equidigital number, since it uses as much as digits as its factorization.

11203401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861800090.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11203401001 its reverse (10010430211), we get a palindrome (21213831212).

The spelling of 11203401001 in words is "eleven billion, two hundred three million, four hundred one thousand, one".