11402320402 has 16 divisors (see below), whose sum is σ = 18921138624. Its totient is φ = 5109874000.

The previous prime is 11402320381. The next prime is 11402320421. The reversal of 11402320402 is 20402320411.

It is a self number, because there is not a number n which added to its sum of digits gives 11402320402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3648349 + ... + 3651472.

It is an arithmetic number, because the mean of its divisors is an integer number (1182571164).

Almost surely, 2^11402320402 is an apocalyptic number.

11402320402 is a deficient number, since it is larger than the sum of its proper divisors (7518818222).

11402320402 is a wasteful number, since it uses less digits than its factorization.

11402320402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299905.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 11402320402 its reverse (20402320411), we get a palindrome (31804640813).

Subtracting 11402320402 from its reverse (20402320411), we obtain a palindrome (9000000009).

The spelling of 11402320402 in words is "eleven billion, four hundred two million, three hundred twenty thousand, four hundred two".