11143402402 has 32 divisors (see below), whose sum is σ = 18397476864. Its totient is φ = 5020041600.

The previous prime is 11143402381. The next prime is 11143402421. The reversal of 11143402402 is 20420434111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4136568 + ... + 4139260.

It is an arithmetic number, because the mean of its divisors is an integer number (574921152).

Almost surely, 2^11143402402 is an apocalyptic number.

11143402402 is a deficient number, since it is larger than the sum of its proper divisors (7254074462).

11143402402 is a wasteful number, since it uses less digits than its factorization.

11143402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11143402402 its reverse (20420434111), we get a palindrome (31563836513).

The spelling of 11143402402 in words is "eleven billion, one hundred forty-three million, four hundred two thousand, four hundred two".