11142211402 has 16 divisors (see below), whose sum is σ = 19931409792. Its totient is φ = 4567614480.

The previous prime is 11142211391. The next prime is 11142211403. The reversal of 11142211402 is 20411224111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11142211402.

It is not an unprimeable number, because it can be changed into a prime (11142211403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17301249 + ... + 17301892.

It is an arithmetic number, because the mean of its divisors is an integer number (1245713112).

Almost surely, 2^11142211402 is an apocalyptic number.

11142211402 is a deficient number, since it is larger than the sum of its proper divisors (8789198390).

11142211402 is a wasteful number, since it uses less digits than its factorization.

11142211402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34603173.

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

Adding to 11142211402 its reverse (20411224111), we get a palindrome (31553435513).

The spelling of 11142211402 in words is "eleven billion, one hundred forty-two million, two hundred eleven thousand, four hundred two".