11420003403 has 8 divisors (see below), whose sum is σ = 16918523600. Its totient is φ = 7613335584.

The previous prime is 11420003383. The next prime is 11420003411. The reversal of 11420003403 is 30430002411.

It is not a de Polignac number, because 11420003403 - 2²⁵ = 11386448971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420003443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211481518 + ... + 211481571.

It is an arithmetic number, because the mean of its divisors is an integer number (2114815450).

Almost surely, 2^11420003403 is an apocalyptic number.

11420003403 is a deficient number, since it is larger than the sum of its proper divisors (5498520197).

11420003403 is an equidigital number, since it uses as much as digits as its factorization.

11420003403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422963098 (or 422963092 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 11420003403 its reverse (30430002411), we get a palindrome (41850005814).

The spelling of 11420003403 in words is "eleven billion, four hundred twenty million, three thousand, four hundred three".