11402111242 has 16 divisors (see below), whose sum is σ = 19062354240. Its totient is φ = 5083293888.

The previous prime is 11402111239. The next prime is 11402111243. The reversal of 11402111242 is 24211120411.

It is a happy number.

11402111242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (11402111243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8824518 + ... + 8825809.

It is an arithmetic number, because the mean of its divisors is an integer number (1191397140).

Almost surely, 2^11402111242 is an apocalyptic number.

11402111242 is a deficient number, since it is larger than the sum of its proper divisors (7660242998).

11402111242 is a wasteful number, since it uses less digits than its factorization.

11402111242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17650365.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11402111242 its reverse (24211120411), we get a palindrome (35613231653).

The spelling of 11402111242 in words is "eleven billion, four hundred two million, one hundred eleven thousand, two hundred forty-two".