11420403201 has 12 divisors (see below), whose sum is σ = 16542873828. Its totient is φ = 7592031744.

The previous prime is 11420403173. The next prime is 11420403209. The reversal of 11420403201 is 10230402411.

11420403201 is a `hidden beast` number, since 1 + 1 + 420 + 40 + 3 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2634152976 + 8786250225 = 51324^2 + 93735^2 .

It is not a de Polignac number, because 11420403201 - 2²² = 11416208897 is a prime.

It is a super-2 number, since 2×11420403201² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11420403209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1794180 + ... + 1800533.

It is an arithmetic number, because the mean of its divisors is an integer number (1378572819).

Almost surely, 2^11420403201 is an apocalyptic number.

It is an amenable number.

11420403201 is a deficient number, since it is larger than the sum of its proper divisors (5122470627).

11420403201 is a wasteful number, since it uses less digits than its factorization.

11420403201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595072 (or 3595069 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11420403201 its reverse (10230402411), we get a palindrome (21650805612).

The spelling of 11420403201 in words is "eleven billion, four hundred twenty million, four hundred three thousand, two hundred one".