11402042403 has 4 divisors (see below), whose sum is σ = 15202723208. Its totient is φ = 7601361600.

The previous prime is 11402042371. The next prime is 11402042441. The reversal of 11402042403 is 30424020411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11402042403 - 2⁵ = 11402042371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11402042403.

It is not an unprimeable number, because it can be changed into a prime (11402049403) 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, 1900340398 + ... + 1900340403.

It is an arithmetic number, because the mean of its divisors is an integer number (3800680802).

Almost surely, 2^11402042403 is an apocalyptic number.

11402042403 is a deficient number, since it is larger than the sum of its proper divisors (3800680805).

11402042403 is an equidigital number, since it uses as much as digits as its factorization.

11402042403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800680804.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 11402042403 its reverse (30424020411), we get a palindrome (41826062814).

The spelling of 11402042403 in words is "eleven billion, four hundred two million, forty-two thousand, four hundred three".